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Logs of Test Holes and Wells

On the pages that follow are given the logs of 43 test holes and wells drilled in Logan County and adjoining areas (Pl. 2). Nine of the logs were supplied by drillers (drillers logs); the other 34 logs are of test holes and wells drilled by the State Geological Survey (sample logs). The test drilling by the Geological Survey was concentrated in upland areas to obtain detailed information on the thickness and character of the Ogallala formation. The geologic sections shown in Plates 3 and 4 are based mainly on data obtained from these logs.

Samples from test holes drilled by the State Geological Survey were collected every 10 feet or at each noticeable change in lithology. The samples were examined and logged in the field and later studied microscopically in the laboratory.

10-32-36dd. Sample log of test hole in the SE cor. sec. 36, T. 10 S., R. 32 W., Thomas County (Frye, 1945, p. 104). Surface altitude, 3,053.8 feet; depth to water, 106 feet.			Thickness, feet	Depth, feet
		Soil, gray brown to black	3	3
Quaternary--Pleistocene
	Sanborn Group
		Silt and very fine sand, yellow gray	20	23
		Silt, buff to white; contains clay, fine gravel, and caliche	2	25
Tertiary--Pliocene
	Ogallala formation
		Gravel, sand, and caliche	13	38
		Silt, pink tan; contains sand, caliche, and gravel	32	70
		Gravel and sand	12	82
		Silt, sand, and caliche, tan	6	88
		Gravel and sand, buff	6	94
		Silt, gravel, and sand, buff	21	115
		Gravel and sand, buff	10	125
		Silt, sand, and gravel, gray	9	134
		Gravel and sand	7	141
		Silt, gravel, and sand	2	143
		Gravel, sand, and silt, buff	13	156
		Silt, sand, and gravel, tan	8	164
		Gravel, sand, and silt, cemented with calcium carbonate, gray	16	180
		Silt, gravel, sand, and caliche, tan to gray	35	215
Cretaceous--Gulfian
	Pierre shale
		Shale, green gray and yellow	5	220
		Shale, yellow to light gray blue	10	230
		Shale, gray	20	250

10-34-36dd. Sample log of test hole in the SE SE sec. 36, T. 10 S., R. 34 W., Thomas County (Frye, 1945, p. 103). Surface altitude, 3,191.2 feet.			Thickness, feet	Depth, feet
		Soil, silty, gray	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt and very fine sand, tan gray	21	23
		Silt and clay, gray brown	12	35
		Silt and clay, tan buff; contains gravel and caliche	12	47
Tertiary--Pliocene
	Ogallala formation
		Gravel, sand, silt, and caliche, buff	9	56
		Silt, sand, gravel, and caliche, tan	2	58
		Gravel and sand, partly cemented	3	61
		Clay, bentonitic (?), silty, yellow buff	4	65
		Silt, tan and gray; contains sand and gravel	9	74
		Gravel, sand, and caliche, gray and buff	30	104
		Silt, caliche, and sand, tan to gray	7	111
		Gravel, sand, and caliche, yellow gray	19	130
		Sand, gravel, and clay, yellow gray	15	145
		Silt, caliche, and sand, yellow oray	7	152
		Gravel	4	156
Cretaceous--Gulfian
	Pierre shale
		Shale, light green, mottled yellow	4	160
		Shale, gray green and gray	15	175

10-35-31cc. Sample log of test hole in the SW cor. sec. 31, T. 10 S., R. 35 W., Thomas County (Frye, 1945, p. 101). Surface altitude, 3,353.4 feet.			Thickness, feet	Depth, feet
		Road fill	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt and very fine sand, yellow gray	15	17
		Silt, gray brown to white; contains sand, gravel, and caliche	3	20
Tertiary--Pliocene
	Ogallala formation
		Silt, clay, sand, gravel, and caliche, white	12	32
		Gravel and sand, cemented	13	45
		Silt, caliche, sand, and gravel, light brown	10	55
		Gravel, sand, and caliche	14	69
		Silt, clay, sand, and caliche, light green yellow to light brown	29	98
		Sand, cemented	22	120
		Gravel and sand	20	140
		Silt, green and brown; contains sand, caliche, and clay	24	164
		Sand, yellow brown; contains silt	12	176
		Silt, clay, sand, and caliche, yellow brown	11	187
		Gravel and sand	7	194
		Clay and silt, yellow buff and light gray green	7	201
		Gravel and sand	14	215
Cretaceous--Gulfian
	Pierre shale
		Shale, light gray green and gray	5	220
		Shale, gray	10	230

10-37-32cc. Sample log of test hole in the SW cor. sec. 32, T. 10 S., R. 37 W.; drilled August 1949. Sherman County (Prescott, 1953, p. 118-119). Surface altitude, 3,307.8 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group-Peoria formation
		Silt, dark brown	9	9
		Silt, light brown; contains snail shells; contains sand from 40 to 44 feet	35	44
		Silt, black; contains many snail shells	2	46
Tertiary--Pliocene
	Ogallala formation
		Sand, coarse, and fine to coarse gravel	7	53
		Mortar bed	3	56
		Sand, fine to medium; contains some cemented layers between 60 and 70 feet	14	70
		Sand, fine to coarse, and fine gravel; contains some medium to coarse gravel	10	80
		Sand, fine to coarse; contains cemented layers of sand and gravel	17	97
		Mortar bed	5	102
		Sand, medium to coarse; contains some gravel; partly cemented	6	108
		Sand, fine to medium	4	112
		Gravel, medium to coarse	4	116
Cretaceous--Gulfian
	Pierre shale
		Shale, light gray to red brown	4	120
		Shale, light gray	3	123
		Shale, dark blue	7	130

11-32-2bc. Drillers log of test hole in the City of Oakley in the SW NW sec. 2, T. 11 S., R. 32 W., drilled October 21, 1946, by Wesley Page, Oakley, Kansas.			Thickness, feet	Depth, feet
		Surface material	4	4
Quaternary--Pleistocene
	Sanborn Group
		Clay	29	33
Tertiary--Pliocene
	Ogallala formation
		Sand	9	42
		Clay	6	48
		Sandstone, firm	8	56
		Gravel, small	32	88
		Clay and sandstone	3	91
		Gravel, small	11	102
		Clay	6	108
		Gravel	28	136
		Clay	13	149
		Clay and small gravel streaks 1 inch thick	11	160
		Clay, mostly, with small gravel streaks	20	180
		Clay and sandstone streaks	3	183
		Gravel	8	191
Cretaceous--Gulfian
	Pierre (?) shale
		Clay	9	200

11-32-3bd1. Drillers log of public-supply well of the City of Oakley in the SE NW sec. 3, T. 11 S., R. 32 W., drilled July 22, 1948, by Norton Manufacturing Company, Norton, Kansas. Surface altitude, 3,055.9 feet.			Thickness, feet	Depth, feet
		Soil, black	3	3
Quaternary--Pleistocene
	Sanborn Group
		Clay, yellow	19	22
Tertiary--Pliocene
	Ogallala formation
		Clay, light colored	6	28
		Clay, sandy	12	40
		Clay, sandy, gray	5	45
		Clay, sandy	3	48
		Gravel, dry	7	55
		Clay, yellow	2	57
		Rock, magnesia	2	59
		Clay	5	64
		Formation, sandy	6	70
		Formation, clay, sandy	13	83
		Gravel, 30 percent of sample 1/16 to 1/8 inch in diameter	9	92
		Clay	5	97
		Gravel, 1/16 to 1/8 inch in diameter	1	98
		Rock, hard	3	101
		Gravel, 1/16 to 1/8 inch in diameter	2	103
		Clay, gray	3	106
		Rock, soft, white	4	110
		Rock	3	113
		Sandstone, hard	5	118
		Gravel, 20 percent of sample 1/16 to 1/8 inch in diameter	1	119
		Clay, gray	7	126
		Gravel, 20 percent of sample 1/16 to 1/8 inch in diameter	9	135
		Gravel, 50 percent of sample 1/16 to 1/8 inch in diameter	9	144
		Rock	7	151
		Sand and gravel	25	176
		Clay	5	181
		Sand and gravel	7	188
		Sandstone, hard	1	189
		Clay	6	195
		Gravel	5	200
		Sandstone, very hard	5	205
		Rock, very hard	5	210
		Sand and gravel	5	215
		Gravel, 30 percent of sample 1/16 inch in diameter	2	217
		Clay	3	220
		Sand	10	230
		Clay, sandy	6	236
		Gravel, 30 percent of sample 1/16 to 1/4 inch in diameter	5	241
		Sand, fine	3	244
		Rock	1	245
		Gravel, 30 percent of sample 1/8 to 1/4 inch in diameter	3	248
Cretaceous--Gulfian
	Pierre (?) shale
		Rock	2 250

11-32-3bd2. Sample log of observation well in the SE NW sec. 3, T. 11 S., R. 32 W., drilled August 16, 1954. Surface altitude, 3,054.9 feet; depth to water, 102.74 feet.			Thickness, feet	Depth, feet
		Soil, silty and clayey, weakly cemented, slightly calcareous, light olive gray	3	3
Quaternary--Pleistocene
	Sanborn Group
		Silt, weakly cemented, calcareous, yellowish gray; contains some gastropods and fragments	2	5
		Silt, weakly cemented, calcareous, yellowish gray; contains abundant gastropods	10	15
		Silt, weakly cemented, calcareous, yellowish gray; few gastropods	5	20
Tertiary--Pliocene
	Ogallala formation
		Siltstone, slightly sandy, weakly cemented, very calcareous, yellowish gray	2.5	22.5
		Siltstone, clayey, slightly sandy, moderately cemented, very calcareous, pale grayish orange; contains much white calcareous material	7.5	30.0
		Shale, sandy and silty, compact, argillaceous, calcareous, pale grayish orange	10	40
		Siltstone, sandy and clayey, much fine sand, quartzose, moderately cemented, calcareous, pale grayish orange	2	42
		Sandstone, silty, fine grained, quartzose and feldspathic, moderately cemented, calcareous, grayish orange	5	47
		Sandstone, medium to coarse grained, much fine gravel and some silt, loose, calcareous, grayish orange	4	51
		Siltstone, clayey, quartzose, slightly calcareous, yellowish gray	9	60
		Siltstone, clayey, some fine sand, quartzose, slightly calcareous, yellowish gray	4	64
		Sandstone, silty, fine grained, quartzose, moderately cemented, calcareous, pale reddish orange, 15	79
		Sandstone, fine to medium grained, some fine gravel, quartzose and feldspathic, loose, calcareous, pale grayish orange	6	85
		Sandstone, fine grained, much silt, quartzose and feldspathic, moderately cemented, very calcareous, pale grayish orange	5	90
		Siltstone, much fine sand, quartzose, moderately cemented, calcareous, yellowish gray	4	94
		Siltstone, much fine sand, quartzose, firmly cemented, very calcareous, yellowish gray	0.5	94.5
		Conglomerate, fine to coarse grained, some fine to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange; contains some granite cobbles	7.5	102
		Siltstone, sandy and clayey, moderately cemented, yellowish gray	6	108
		Shale, moderately cemented, yellowish gray	3	111
		Sandstone, fine grained, much silt and some coarse sand, quartzose, moderately cemented, calcareous, moderate reddish orange	5	116
		Sandstone, fine to coarse grained, some fine to medium gravel, quartzose and feldspathic, some large rock fragments, moderately cemented, calcareous, moderate reddish orange	6	122
		Siltstone, much fine to medium sand, quartzose, firmly cemented, calcareous, moderate orange pink	8	130
		Sandstone, fine to coarse grained, some silt and fine gravel, quartzose, moderately cemented, calcareous, grayish orange pink	9	139
		Sandstone, fine grained, much silt and some fine gravel, quartzose and feldspathic, moderately to firmly cemented, calcareous, grayish orange pink	1	140
		Siltstone, much fine to medium sand, quartzose, moderately to firmly cemented, very calcareous, very pale orange	6	146
		Siltstone, much fine sand, quartzose, moderately cemented, very calcareous, grayish orange pink	4	150
		Conglomerate, fine to medium grained, some fine sand and silt., quartzose and feldspathic, moderately cemented, calcareous, moderate orange pink	8.5	158.5
		Siltstone, much fine sand, quartzose, moderately cemented, very calcareous, very pale orange	0.5	159

11-32-14cb. Sample log of test hole on east shoulder of road 0.30 mile north of section corner in the NW SW sec. 14, T. 11 S., R. 32 W., drilled July 29, 1954. Surface altitude, 3,050.1 feet.			Thickness, feet	Depth, feet
		Soil, black	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, weakly cemented, yellowish gray	2	3
		Silt, sandy, weakly cemented, calcareous, yellowish gray; contains gastropods	7	10
		Silt, sandy, weakly cemented, calcareous, yellowish gray; contains abundant gastropod fauna	9	19
		Silt, clayey and sandy, weakly cemented, very calcareous, very pale orange; contains some gastropod fragments	4.5	23.5
		Sand, fine to coarse grained, much gravel and silt, weakly cemented, calcareous, grayish pink orange	6.6	30.1
Tertiary--Pliocene
	Ogallala formation
		Sandstone, silty, fine to coarse grained, some gravel, firmly cemented, very calcareous, grayish orange	2	32.1
		Sandstone, fine to coarse grained, some fine gravel, quartzose and feldspathic, weakly cemented, calcareous, very pale to grayish orange	7.5	39.6
		Shale, silty, some sand, argillaceous and calcareous, very pale yellow and brown; contains much white calcareous material	5.5	45.1
		Sandstone, fine to coarse grained, much gravel, quartzose and feldspathic, very weakly cemented, calcareous, very pale yellowish brown	3	48.1
		Shale, sandy, argillaceous and calcareous, pale olive	2	50.1
		Siltstone, clayey, some sand, weakly cemented, calcareous, moderate reddish orange	10	60.1
		Siltstone, clayey, slightly sandy, weakly cemented, calcareous, moderate reddish orange	10	70.1
		Shale, silty, some sand, weakly cemented, argillaceous and calcareous, light greenish gray	7	77.1
		Sandstone, medium. to coarse grained, much fine gravel and some clay, loose, calcareous, reddish gray	9	86.1
		Sandstone, medium to coarse grained, much fine to medium gravel, moderately well cemented, pale grayish red	1	87.1
		Siltstone, much. sand and medium gravel, firmly cemented, calcareous, pale grayish red	4	91.1
		Siltstone, sandy, some clay and gravel, firmly cemented, calcareous, light reddish gray	6	97.1
		Siltstone, much sand, moderately cemented, calcareous, grayish orange	7	104.1
		Conglomerate,, fine to medium grained, much sand, quartzose and feldspathic, loose, calcareous, grayish orange	3	107.1
		Sandstone, fine to coarse grained, and fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange	5	112.1
		Conglomerate, fine to medium grained, much sand, quartzose and feldspathic, loose, calcareous, grayish orange	15	127.1
		Conglomerate, fine to medium grained, much sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange	5	132.1
		Siltstone, sandy, calcareous, moderate orange red; contains woody fragments	5	137.1
		Siltstone, sandy, moderately cemented, calcareous, grayish orange	3	140.1
		Conglomerate, coarse grained, some sand, quartzose and feldspathic, loose, calcareous, grayish orange	4	144.1
		Siltstone, clayey, some sand, moderately cemented, very calcareous, light grayish orange	10	154.1
		Siltstone, clayey, some sand, very firmly cemented, very calcareous, pale orange, pink	3	157.1
Cretaceous--Gulfian
	Pierre (?) shale
		Shale, very calcareous, pale yellowish orange	10	167.1
		Shale, very calcareous, pale yellowish orange and light greenish gray	10	177.1
		Shale, firmly cemented, very calcareous, medium gray	15	192.1

11-32-26cb. Sample log of test hole 0.3 mile north of SW cor. sec. 26, T. 11 S., R. 32 W., drilled July 30, 1954. Surface altitude, 3,038.4 feet.			Thickness, feet	Depth, feet
		Soil, weakly cemented, gray	0.7	0.7
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, weakly cemented, calcareous	1.3	2
		Silt, clayey, some fine sand, quartzose, weakly cemented, calcareous, yellowish gray; contains gastropod fragments	8	10
		Silt, quartzose, weakly cemented, calcareous, yellowish gray	3	13
		Silt, clayey, some fine sand, quartzose, weakly cemented, calcareous, pale grayish orange pink	4	17
		Silt, clayey, some fine sand and gravel, quartzose, weakly cemented, calcareous, pale orange pink	3	20
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine grained, some silt and some medium and coarse sand, quartzose, very firmly cemented, calcareous, grayish orange	7	27
		Sandstone, fine to medium grained, and some fine gravel, quartzose, moderately cemented, calcareous, grayish orange	3	30
		Sandstone, fine to coarse grained, some fine gravel, quartzose and feldspathic, moderately cemented, very calcareous, pale grayish orange	4	34
		Siltstone, clayey, some fine and coarse sand, quartzose, very firmly cemented, very calcareous, very pale orange	3	3
		Siltstone, clayey, some sand, quartzose, firmly cemented, calcareous, pale reddish orange	7	44
		Siltstone, very sparse sand, quartzose, firmly cemented, calcareous, pale orange pink	5	49
		Siltstone, some fine sand and clay, quartzose, moderately cemented, calcareous, pale grayish orange pink	1	50
		Sandstone, fine to medium grained, some silt, quartzose, calcareous, pale orange pink	5	5
		Sandstone, fine to coarse grained, some silt and fine gravel, quartzose, calcareous, pale orange pink	4	59
		Siltstone, some fine sand, quartzose, very firmly cemented, very calcareous, light gray	4	63
		Sandstone, medium to coarse grained, some fine gravel, quartzose and feldspathic, calcareous, pale grayish orange	6	69
		Shale, compact, very calcareous, very pale orange	1	70
		Siltstone, clayey, some fine sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	2	72
		Sandstone, very fine grained, much silt, quartzose, moderately cemented, calcareous, pale reddish orange	6	78
		Siltstone, some light-gray clay, quartzose, moderately cemented, calcareous, pale orange pink	2	80
		Siltstone, some fine sand, quartzose, firmly cemented, calcareous, moderate reddish orange	3	83
		Sandstone, fine to coarse grained, some silt and some fine gravel, quartzose, loose, calcareous, pale orange pink	6	89
		Siltstone, clayey, some fine sand, quartzose, moderately cemented, very calcareous, grayish pink	1	90
		Siltstone, some fine sand, quartzose, moderately cemented, calcareous, grayish orange pink	2	92
		Shale, silty, very compact, very calcareous, grayish orange pink	5	97
		Siltstone, some medium to coarse gravel, quartzose and feldspathic, moderately cemented, very calcareous, grayish orange pink	3	100
		Siltstone, some clay, fine sand, and gravel, very firmly cemented, calcareous, moderate orange pink	5	105
		Sandstone, fine to coarse grained, some fine gravel, quartzose and somewhat feldspathic, moderately cemented, calcareous, moderate orange pink	3	108
		Conglomerate, fine to medium grained, some fine to coarse sand and some silt, quartzose and feldspathic, loose, calcareous, grayish orange	2	110
		Sandstone, medium to coarse grained, much fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange	7	117
Cretaceous--Gulfian
	Pierre (?) shale
		Shale, fairly compact, calcareous, pale orange to dusky yellow	3	120
		Shale, compact, calcareous, light yellow and dark yellow orange	5	125
		Shale, compact, calcareous, light gray and yellow orange	5	130

11-32-34bb. Drillers log of test hole of Sylvester Mader in the NW NW sec. 34, T. 11 S., R. 32 W., drilled in 1953 by Struckoff Brothers, Grinnell, Kansas. Surface altitude, 3,038 feet.			Thickness, feet	Depth, feet
		No sample	64	64
Tertiary--Pliocene
	Ogallala formation
		Rock	1	65
		Sand and clay	7	72
		Gravel, coarse	3	75
		Clay	3	78
		Rock	2	80
		Gravel, good, medium	14	94
		Clay	2	96
		Gravel, medium	10	106
Cretaceous--Gulfian
	Pierre (?) shale
		Clay, soapy	6	112

11-33-14bc2. Sample log of observation well 178 feet south of irrigation well in the SW NW sec. 14, T. 11 S., R. 33 W., drilled August 17, 1954. Surface altitude, 3,132.5 feet; depth to water, 133.84 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown	5	6
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains many gastropods	4	10
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown	10	20
		Silt, and some clay, quartzose, weakly cemented, calcareous, grayish orange pink	2	22
		Silt, and some clay, quartzose, weakly to moderately cemented, very calcareous., pale grayish orange pink	2	24
		Silt, and some clay, quartzose, moderately cemented, very calcareous, light gray to white	3	27
		Silt, some clay, and a few grains of coarse sand, quartzose, weakly to moderately cemented, very calcareous, very pale grayish orange pink	5	32
		Silt, some fine to coarse sand, and some clay, quartzose, weakly to moderately cemented, very calcareous, very pale grayish orange pink	4.5	36.5
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to medium grained, some silt and clay and some fine gravel, quartzose, moderately cemented, very calcareous, grayish orange pink	5.5	42
		Siltstone, much clay, quartzose, moderately cemented, very calcareous, pale orange	8	50
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, calcareous, reddish orange	7.5	57.5
		Sandstone, fine grained, some silt, quartzose, moderately to firmly cemented, calcareous, reddish orange	2.5	60
		Sandstone, fine grained, much silt and reddish clay, quartzose, moderately cemented, very calcareous, pale orange	8	68
		Sandstone, fine to medium grained, much silt and coarse sand and some fine to medium gravel, quartzose and feldspathic, weakly cemented, calcareous, pale orange	3.5	71.5
		Sandstone, fine to medium grained, some silt and reddish clay, quartzose, moderately cemented, calcareous, orange pink	6	77.5
		Conglomerate, fine to medium grained, much fine to coarse sand and some clay, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	7.5	85
		Shale, much silt and some sand, moderately to firmly cemented, calcareous, grayish orange	1	86
		Sandstone, medium to coarse grained, fine gravel and fine sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange	7.5	93.5
		Sandstone, fine to medium grained, much fine gravel and coarse sand, quartzose and feldspathic, moderately to firmly cemented, calcareous, grayish orange pink	6.5	100
		Conglomerate, fine to coarse grained, some coarse, sand, quartzose and feldspathic, calcareous, weakly cemented, grayish orange pink	18	118
		Siltstone, some clay, quartzose, moderately cemented, calcareous, grayish orange pink	2	120
		Sandstone, fine grained, much silt, quartzose, moderately cemented, calcareous, grayish orange pink	10	130
		Sandstone, fine to medium grained, much fine gravel and some silt, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink; contains thin beds or lenses of conglomerate	10	140
		Sandstone, medium to coarse grained, much fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	10	150
		Sandstone, fine to medium grained, small amount of gravel and silt, quartzose and feldspathic, moderately to firmly cemented, calcareous, grayish orange pink	7	157
		Sandstone, fine to medium grained, much silt and reddish clay, quartzose and feldspathic, moderately to very firmly cemented, grayish orange pink	3	160

11-34-13bb. Sample log of test hole in the NW cor. sec. 13, T. 11 S., R. 34 W., drilled August 5, 1954. Surface altittide, 3,169.8 feet; depth to water, 115.5 feet.			Thickness, feet	Depth, feet
		Soil, silty, somewhat clayey, quartzose, wedkly cemented, slightly calcareous, yellowish brown	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown	4	5
		Silt, some clay, quartzose, weakly cemented, calcareous, pale yellowish brown; contains a few gastropods	10	15
		Siltstone, much clay, and slightly sandy, quartzose, moderately cemented, calcareous, pale grayish orange pink	7	22
		Siltstone, considerable clay, quartzose, moderately cemented, very calcareous, pale grayish orange	3	25
		Siltstone, much clay and some medium to coarse sand, quartzose, moderately cemented, very calcareous, pale-grayish orange	5	30
		Siltstone, much fine sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	5	35
		Siltstone, much fine to coarse sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	1.5	36.5
Tertiary--Pliocene
	Ogallala formation
		Sandstone, medium to coarse grained, some fine gravel and silt, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	3.5	40
		Sandstone, medium to coarse grained, some fine to very coarse gravel. and fine sand, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	10	50
		Conglomerate, coarse sand, and medium to fine gravel, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	15	65
		Sandstone, fine to medium grained, much silt, quartzose, moderately cemented, slightly calcareous, reddish orange	5	70
		Conglomerate, fine grained, some coarse sand, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	4	7.4
		Conglomerate, fine to medium grained, some coarse sand, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	3	77
		Siltstone, some fine sand, quartzose, moderately to firmly cemented, very calcareous, pale grayish orange	9	86
		Sandstone, fine to coarse grained, some fine to medium gravel, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	14	100
		Shale, silty, moderately to firmly cemented, calcareous, grayish orange pink	10	110
		Siltstone, much clay, quartzose, firmly cemented, calcareous, pale grayish orange pink	5	115
		Shale, silty, quartzose, moderately to firmly cemented, very calcareous, pale grayish orange pink	9	124
		Sandstone, fine to coarse grained, much fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	6	130
		Sandstone,, fine to medium grained, some silt and coarse sand, quartzose, moderately cemented, calcareous, reddish orange	10	140
		Sandstone, fine grained, some silt and medium to coarse sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	2	142
		Siltstone, much fine sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	7.5	149.5
		Sandstone, fine to coarse grained, some silt and fine gravel, quartzoge, moderately cemented, very calcareous, pale grayish orange pink; contains a very firmly cemented layer at 149.5 feet	10.5	160
		Sandstone, fine to coarse grained, much fine gravel, quartzose, moderately cemented, very calcareous, pale grayish orange pink	6	166
Cretaceous--Gulfian
	Pierre shale
		Shale, somewhat bentonitic, firmly cemented, slightly calcareous, light gray and pale yellowish orange	9	175
		Shale, clayey, firmly cemented, noncalcareous, dark medium gray	5	180

11-34-24ca1. Drillers log of irrigation well of Horace Holmes in the NE SW sec. 24, T. 11 S., R. 34 W., drilled in 1945 by C. A. Robbin, Norton, Kansas. Surface altitude, 3,114.8 feet; depth to water, 59.83 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group
		Soil, dark	10	10
		Clay, yellow	15	25
Tertiary--Pliocene
	Ogallala formation
		Gravel, dry	4	29
		Clay, gray	1	30
		Gravel, dry	8	38
		Clay, yellow	3	41
		Gravel, 20 percent of sample 1/8 to 1/16 inch in diameter	5	46
		Clay, gray	3	49
		Gravel, 30 percent of sample 1/4 inch in diameter	2	51
		Clay, yellow	9	60
		Gravel, 25 percent of sample 1/6 to 1/8 inch in diameter	10	70
		Gravel, 30 percent of sample 1/16 to 1/8 inch in diameter	12	82
		Clay, yellow	2	84
		Sand, coarse, or plaster sand	9	93
		Clay, sandy, yellow	8	101
		Sand, fine	4	105
		Clay, gray	7	112
		Sand, fine	2	114
		Clay, sandy, brown	11	125
		Sand, coarse	2	127
		Gravel, 20 percent of sample 1/16 inch in diameter	7	134
		Gravel, 25 percent of sample 1/16 to 1/8 inch in diameter	6	140
		Gravel, 20 percent of sample 1/16 to 1/8 inch in diameter	7	147
Cretaceous--Gulfian
	Pierre shale
		Shale	0.5	147.5

11-34-24ca2. Sample log of observation well in the NE SW sec. 24, T. 11 S., R. 34 W., drilled August 17, 1954. Surface altitude, 3,110 feet; depth to water, 57.00 feet.			Thickness, feet	Depth, feet
		Soil, silty, quartzose, weakly cemented, slightly calcareous, light brownish gray	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt, some clay, quartzose, moderately cemented, very calcareous, very pale grayish orange; contains many gastropod fragments	3	5
		Silt, some clay, quartzose, weakly cemented, very calcareous, very pale orange	5	10
		Silt, much fine sand, quartzose, weakly cemented, noncalcareous, grayish orange	2	12
Tertiary--Pliocene
	Ogallala formation
		Sandstone, medium to coarse grained, quartzose, loose, noncalcareous, grayish orange	5	17
		Conglomerate, fine to coarse grained, much medium to coarse sand, quartzose and feldspathic, loose, noncalcareous, grayish orange; contains pebbles as much as 3 centimeters in diameter	4	21
		Siltstone, much reddish clay and fine sand, moderately cemented, noncalcareous, grayish orange pink	15.5	36.5
		Sandstone, medium to coarse grained, much fine gravel quartzose and feldspathic, loose, noncalcareous, grayish orange	5.5	42
		Siltstone, some reddish clay, quartzose, moderately cemented, calcareous, grayish orange pink	3	45
		Siltstone, some clay, quartzose, moderately cemented, calcareous, very pale yellowish brown	11	56
		Sandstone, coarse grained, much fine gravel, quartzose and feldspathic, weakly cemented, slightly calcareous, grayish orange pink	4	60
		Sandstone, fine to coarse grained, much fine to medium gravel, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	10	70
		Conglomerate, fine to coarse grained, much fine to coarse sand, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink; contains pebbles as much as 3 centimeters in diameter and black coating upon much of the gravel	12	82
		Shale, much silt and fine sand, moderately cemented, calcareous, grayish orange pink	6	88
		Sandstone, fine grained, some silt and reddish clay, quartzose, moderately to firmly cemented, calcareous, grayish orange	2	90
		Sandstone, fine grained, much silt and some reddish clay, quartzose, moderately to firmly cemented, calcareous, pale reddish orange	10	100
		Sandstone, fine grained, much silt and clay, quartzose, moderately to firmly cemented, very calcareous, grayish orange	3	103
		Sandstone, fine to medium grained, much silt and some fine gravel, quartzose, weakly cemented, calcareous, grayish orange	2	105
		Siltstone, much fine sand and reddish clay, quartzose, moderately cemented, calcareous, grayish orange pink	3	108
		Siltstone, much clay and fine sand, quartzose, moderately to firmly cemented, very calcareous, pale grayish orange pink	2	110
		Sandstone, fine grained, some silt and reddish clay, quartzose, moderately cemented, calcareous, pale reddish orange	7	117
		Sandstone, fine to coarse grained, some,silt.ancl reddish clay, quartzose, moderately cemented, calcareous, pale reddish orange	3	120
		Sandstone, medium to coarse grained, much silt and fine sand, quartzose, moderately cemented, calcareous, grayish orange pink	10	130
		Conglomerate, fine to medium grained, much coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink; contains gravel with black coating and, fragments of yellow and light-gray shale	5	135
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately cemented, noncalcareous, very light gray to dark yellowish gray	5	140

11-35-1aa. Sample log of test hole 50 feet west of the NE cor. sec. 1, T. 11 S., R. 35 W., drilled August 9-10, 1954. Surface altitude, 3,268.8 feet.			Thickness, feet	Depth, feet
		Road fill, silty, some clay, quartzose, weakly cemented, slightly calcareous, brownish gray	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown	3	5
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains an abundant gastropod fauna	10	15
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown; contains some gastropod fragments	12	27
		Silt, quartzose, moderately cemented, very calcareous, pale grayish orange	3	30
		Silt, slightly sandy, quartzose, moderately cemented, very calcareous, pale grayish orange	10	40
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to medium grained, much silt and clay, quartzose, moderately to firmly cemented, very calcareous, grayish orange pink	5	45
		Sandstone, fine to medium grained, some silt and coarse , sand, quartzose, moderately cemented, calcareous, pale reddish orange	5	50
		Sandstone, fine grained, very much silt, quartzose, moderately cemented, very calcareous, grayish orange	2	52
		Siltstone, some fine sand and clay, quartzose, moderately to firmly cemented, very calcareous, white to very pale orange	2.5	54.5
		Sandstone, fine to coarse grained, some fine to medium gravel, quartzose, weakly cemented, calcareous, pale grayish orange pink	10.5	65
		Sandstone, fine to medium grained, much silt and clay, quartzose, moderately to firmly cemented, calcareous, reddish orange	2	67
		Conglomerate, fine to medium grained, much coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	8	75
		Conglomerate, medium to coarse grained, some sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	5	80
		Conglomerate, fine to medium grained, much coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	5	85
		Conglomerate, medium to coarse grained, much fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	5	90
		Sandstone, medium to coarse grained, some fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	5	91
		Conglomerate, fine to medium grained, much fine to coarse sand, quartzose and feldspathic, moderately to firmly cemented, calcareous, grayish orange pink; contains two very firmly cemented layers at 96 and 99.5 feet	5	100
		Sandstone, fine to medium grained, some silt, quartzose, moderately cemented, calcareous, reddish orange	7	107
		Sandstone, fine grained, much silt and medium sand, quartzose, moderately cemented, very calcareous, grayish orange pink	3	1.10
		Siltstone, much clay and, some fine sand, quartzose, moderately cemented, very calcareous, very pale orange	4	114
		Siltstone, much clay, and some fine sand, quartzose, moderately to firmly cemented, calcareous, yellowish gray	6	120
		Shale, some silt and fine sand, moderately to firmly cemented, calcareous, yellowish gray	10	130
		Siltstone, much clay, slightly sandy, quartzose, moderate to firmly cemented, slightly calcareous, yellowish gray	2	132
		Sandstone, medium to coarse grained, much fine to medium gravel, quartzose and feldspathic, moderately cemented, slightly calcareous, pale grayish orange pink	8	140
		Conglomerate, medium grained, much coarse sand and fine gravel, quartzose and feldspathic, weakly cemented, slightly calcareous, pale grayish orange pink	10	150
		Conglomerate, fine grained, much medium sand and medium gravel, weakly cemented, slightly calcareous, pale grayish orange pink	9.5	159.5
		Sandstone, fine to niedium grained, much silt, quartzose, moderately cemented, calcareous, grayish orange	0.5	160
		Sandstone, fine to niedium grained, very silty and clayey, some gravel, quartzose, moderately cemented, calcareous, grayish orange; contains some fragments of gray clay shale	10	170
		Sandstone, fine grained, very silty and clayey, quartzose, moderately cemented, calcareous, pale yellowish brown	5	175
		Sandstone, fine grained, much silt and clay, quartzose, some gypsum, moderately cemented, calcareous, yellowish brown	5	180
		Sandstone, medium to coarse grained, much fine sand and silt and some gravel, quartzose, some gypsum, moderately cemented, calcareous, pale yellowish brown	5	185
Cretaceous--Gulfian
	Pierre shale
		Shale, containing gypsum, moderately to firmly cemented, slightly calcareous, medium light gray	5	190
		Shale, some bentonite and gypsum, firmly cemented, noncalcareous, medium dark gray	2	192

11-35-5bb1. Drillers log of public-supply well of City of Winona in the NW NW sec. 5, T. 11 S., R. 35 W., drilled in 1949 by Devlin Construction Company. Surface altitude, 3,341.3 feet; depth to water, 171.01 feet.			Thickness, feet	Depth, feet
		Soil, black	3	3
Quaternary--Pleistocene
	Sanborn Group
		Clay and silt	25	28
Tertiary--Pliocene
	Ogallala formation
		Clay and fine sand	16	44
		Clay, sand, and silt	6	50
		Sand and gravel	10	60
		Sand and clay	20	80
		Sand, clay, and gravel	13	93
		Clay and fine sand	7	100
		Sand, cemented	10	110
		Sand and gravel	10	120
		Sand, fine; contains clay and silt	30	150
		Sand and clay	44	194
		Sand, cemented	6	200
		Gravel, coarse	17	217
Cretaceous--Gulfian
	Pierre shale
		Shale	1	218

11-35-7cc. Sample log of test hole 100 feet north of SW cor. sec. 7, T. 11 S., R. 35 W., drilled August 14, 1954. Surface altitude, ?,294.3 feet.			Thickness, feet	Depth, feet
		Road fill, silty	3	3
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown	2	5
		Silt, slightly sandy. quartzose, weakly cemented, very pale yellowish brown; contains a few gastropod fragments	5	10
		Silt, slightly sandy and clayey, quartzose, weakly cemented, calcareous, very pale yellowish brown	10	20
		Silt, much clay, and some sand, quartzose, moderately cemented, calcareous, grayish orange	10	30
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to medium grained, some fine gravel and coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange	4	34
		Sandstone, medium to coarse grained, much fine gravel and silt, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	6	40
		Sandstone, medium to coarse grained, some silt, quartzose, weakly cemented, calcareous, pale grayish orange	5	45
		Sandstone, fine grained, much silt and clay, quartzose, moderately cemented, calcareous, grayish orange pink	5	50
		Sandstone, fine grained, much silt and some clay and fine gravel, moderately cemented, calcareous, grayish orange pink	7	57
		Limestone or caliche, moderately to firmly cemented, very calcareous, white	0.5	57.5
		Sandstone, fine grained, much silt and medium sand, quartzose, moderately cemented, calcareous, grayish orange pink	2.5	60
		Sandstone, fine grained, some clay and silt, quartzose, moderately cemented, calcareous, pale grayish orange	3.5	63.5
		Siltstone, much clay, quartzose, moderately to firmly cemented, calcareous, very pale yellowish brown	2.5	66
Cretaceous--Gulfian
	Pierre shale
		Shale, firmly cemented, noncalcareous, very pale olive to yellowish gray	4	70
		Shale, firmly cemented, noncalcareous, yellowish gray	6	76
		Shale, firmly cemented, noncalcareous, yellowish brown	1	77
		Shale, bentonitic, moderately to firmly cemented, noncalcareous, yellowish gray	3	80
		Shale, moderately to firmly cemented, noncalcareous, yellowish gray; contains some very dark gray shale	10	90

11-35-24dd. Sample log of test hole 0.9 mile south of U. S. Highway 40 in the SE cor. sec. 24, T. 11 S., R. 35 W., drilled August 10, 1954. Surface altitude, 3,193.0 feet., depth to water, 56.15 feet.			Thickness, feet	Depth, feet
		Soil, silty, slightly calcareous, yellowish brown	1.5	1.5
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose., weakly cemented, calcareous, yellowish brown	3.5	5
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains some gastropods	5	10
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains an abundant gastropod fauna	5	15
		Silt, some clay, quartzose and slightly ferruginous, weakly cemented, very calcareous, very pale orange	5	20
Tertiary--Pliocene
	Ogallala formation
		Conglomerate, fine to medium grained, some coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	8	28
		Sandstone, medium to coarse grained, much fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	4	32
		Siltstone, much fine sand, quartzose, loose, slightly calcareous, grayish to reddish orange	3	3.5
		Sandstone, medium grained, much fine and coarse sand and fine gravel, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	11	46
		Shale, some silt, moderately cemented, noncalcareous, pale yellowish brown	2	48
		Sandstone, medium to coarse grained, some fine gravel, quartzose and feldspathic loose, noncalcareous, grayish orange pink	6	54
		Siltstone, much fine sand, quartzose, moderately cemented, slightly calcareous, reddish orange	4	58
		Sandstone, medium to coarse grained, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	10	68
		Sandstone, medium grained, much fine and some coarse sand, quartzose, loose, slightly calcareous, grayish orange	6	74
		Siltstone, some fine sand, quartzose, moderately cemented, calcareous, pale grayish orange pink	4	78
		Siltstone, much clay, and some fine sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	5	83
		Limestone or caliche, somewhat clayey, very firmly cemented, white to very pale orange	5	88
		Siltstone, some fine sand, quartzose, moderately cemented, very calcareous, very pale orange	2	90
		Sandstone, fine grained, much silt, quartzose, moderately cemented', calcareous, grayish orange pink	3	93
		Shale, some silt and sand, quartzose, moderately cemented, calcareous, very pale orange; contains firmly cemented silty and sandy layers	4	97
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately cemented, noncalcareous, light gray to dark yellowish orange	10.5	107.5
		Shale, moderately to firmly cemented, noncalcareous, medium dark gray	0.5	108

11-36-12aa. Sample log of test well 20 feet southwest of the NE cor. sec. 12, T. 11 S., R. 36 W., drilled August 14, 1954. Surface altitude, 3,314.8 feet; depth to water, 110.4 feet.			Thickness, feet	Depth, feet
		Soil, silty, some clay, quartzose, weakly cemented, noncalcareous, dark yellowish brown	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, some clay, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains many gastropods	14	15
		Silt, some medium to coarse sand, slightly clayey, quartzose, weakly cemented, very calcareous, pale grayish orange	1.5	16.5
		Silt, some fine to coarse sand, slightly clayey, moderately cemented, very calcareous, pale orange	3.5	20
Tertiary--Pliocene
	Ogallala formation
		Siltstone, much fine sand and clay and some medium to coarse sand, moderately cemented, quartzose, very calcareous, pale grayish orange	5	25
		Sandstone, coarse grained, much fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	3	28
		Siltstone, much reddish clay, quartzose, moderately cemented, calcareous, pale red	6	34
		Siltstone, much fine sand, quartzose, moderately to firmly cemented, very calcareous, white	6	40
		Siltstone, much fine to medium sand, quartzose, firmly cemented, very calcareous, white	6	46
		Sandstone, medium to coarse grained, much silt and clay and fine to medium gravel, moderately cemented, calcareous, pale grayish orange pink	4	50
		Sandstone, fine to coarse grained, much fine to coarse gravel, quartzose and feldspathic, weakly cemented, calcareous, pale grayish orange pink; contains layers of very coarse gravel conglomerate	19	69
		Sandstone, fine to coarse grained, some gravel, quartzose, very firmly cemented, sihceous, white to pale grayish orange pink	2	71
		Conglomerate, fine to coarse grained, some coarse sand, quartzose and feldspathic, moderately cemented, calcareous, pale grayish orange pink	1.5	72.5
		Siltstone, much fine sand, quartzose, moderately to firmly cemented, very calcareous, very pale grayish orange	3.5	76
		Conglomerate, fine to medium grained, fine to coarse sand, quartzose, very firmly cemented, calcareous, white to very pale orange	1.5	77.5
		Conglomerate, medium to coarse grained, some sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	2.5	80
		Sandstone, fine to medium grained, some coarse sand and fine to medium gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	10	90
		Sandstone, fine grained, some silt and medium to coarse sand, quartzose, loose, calcareous, grayish orange	6	96
		Sandstone, fine grained, some silt and medium to coarse sand and gravel, quartzose, moderately cemented, calcareous, grayish orange	20	116
		Conglomerate, fine to medium grained, some fine to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink; a dark coating is prevalent on the coarser sand and gravel grains	4	120
		Conglomerate, fine to medium grained, some coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange; contains some shale and ferruginous concretionary material	3.5	123.5
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately to firmly cemented, noncalcareous, yellowish gray	3.5	127
		Shale, somewhat micaceous or gypsiferous, moderately to firmly cemented, noncalcareous, yellowish gray	3	130

11-36-25aa. Sample log of test hole 30 feet south of the NE cor. sec. 25, T. 11 S., R. 36 W., drilled August 14, 1954. Surface altitude, 3,276.7 feet; depth to water, 40.00 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, some fine to coarse sand, qtiartzose, weakly cemented, calcareous, very pale yellowish brown; contains an abundant gastropod fauna	9	10
		Silt, some fine to coarse sand, quartzose, weakly cemented, calcareous, very pale yellowish brown	7	17
		Silt, fine grained, some clay, slightly sandy, weakly cemented, calcareous, pale grayish orange	13	30
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to medium grained, much clay and coarse sand and fine gravel, quartzose, weakly cemented, calcareous, grayish orange	2	32
		Siltstone, much clay, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	5	37
		Conglomerate, fine to medium grained, some medium to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange; contains, grains of quartz, feldspar, and granite partly covered with a black (manganese?) coating	3	40
		Sandstone, fine to medium grained, much silt and some coarse sand, quartzose, moderately cemented, noncalcareous, pale reddish orange	10	50
		Shale, much silt, and some fine sand, moderately to firmly cemented, very calcareous, pale red; contains much white calcareous material	5	55
		Shale, much silt and fine sand, moderately cemented, very calcareous, grayish orange pink; contains much white calcareous material	5	60
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately to firmly cemented, yellowish gray to light gray, noncalcareous	20	80
		Shale, moderately to firmly cemented, calcareous, very pale yellowish brown	6	86
		Shale, moderately to firmly cemented, noncalcareous, medium gray	4	90

11-36-36da. Sample log of test hole on the SW cor. of intersection of U. S. Highway 40 and east edge of the SE sec. 36, T. 11 S., R. 36 W., drilled Aug. 13, 1954. Surface altitude, 3,333.1 feet; depth to water, 145.6 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, some fine to medium sand, slightly clayey, quartzose, weakly cemented, calcareous, very pale yellowish brown	9	10
		Silt, slightly sandy and clayey, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains gastropod fragments	10	20
		Silt, some sand and gravel, quartzose, moderately cemented, calcareous, pale grayish orange	7	27
		Silt, much clay, and some fine to coarse sand and gravel, quartzose, moderately cemented, very calcareous, very pale orange	14.5	41.5
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to coarse grained, much silt and fine gravel, quartzose, moderately cemented, very calcareous, very pale orange	2	43.5
		Sandstone, fine grained, much silt and medium sand, quartzose, moderately cemented, calcareous, pale reddish orange	5	48.5
		Conglomerate, fine to coarse grained, some fine to coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange	1.5	50
		Conglomerate, fine to coarse grained, some coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	10	60
		Conglomerate, fine to medium grained, some medium to coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	15	7
		Sandstone, fine to medium grained, much pale-red clay, and some silt, quartzose, moderately to firmly cemented, slightly calcareous, reddish orange	3	78
		Conglomerate, fine to coarse grained, some medium to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	12	90
		Conglomerate, medium to coarse grained, some coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	10	100
		Conglomerate, fine grained, some coarse sand and medium gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	2	102
		Siltstone, much clay, and some fine sand, quartzose, moderately to firmly cemented, calcareous, pale yellowish brown	4	106
		Siltstone, much clay, quartzose, moderately to firmly cemented, slightly calcareous, pale yellowish brown to grayish orange	3	109
		Sandstone, fine to coarse grained, much fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink; contains some large pebbles and cobbles	5	114
		Siltstone, much clay, slightly andy, quartzose, moderately to firmly cemented, calcareous, pale grayish orange; contains a firmly cemented layer at 116.5 feet	6	120
		Siltstone, much clay, and some fine sand, quartzose, moderately to firmly cemented, calcareous, very pale yellowish brown	14	134
		Sandstone, medium to coarse grained, much fine gravel, and some medium to coarse gravel, quartzose and feldspathic, moderately cemented, slightly calcareous, grayish orange pink	6	140
		Conglomerate, fine grained, some medium to coarse sand, and some medium to coarse gravel, quartzose and feldspathic, moderately cemented, slightly calcareous, grayish orange pink	5	145
		Shale, much silt, and some sand, moderately cemented, slightly calcareous, pale red	5	150
		Siltstone, much clav, slightly sandy, quartzose, moderately cemented, calcareous, grayish orange	3	153
		Sandstone, fine to coarse grained, some fine to medium gravel, and much clay and silt, quartzose, very calcareous, yellowish gray; contains white calcareous material	5	158
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately cemented, noncalcareous, yellowish gray	18	176
		Shale, moderately cemented, noncalcareous, medium light gray	4	180

12-31-6bb. Sample log of test hole in the NW cor. sec. 6, T. 12 S., R. 31 W., Gove County, 90 feet south of road intersection and 85 feet east of centerline of road, drilled September 1952. Surface altitude, 3,014.3 feet; depth to water, 89.85 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group
		Clay, silty, dark brown	1	1
		Clay, gray; contains some gravel	2	3
		Silt, tan gray to tan brown	14	17
		Clay, silty to very limy, tan to tan white	13	30
Tertiary--Pliocene
	Ogallala formation
		Clay, limy, tan to white; contains sand and gravel	17	47
		Sand and gravel, clayey, cemented in part	11	58
		Clay, compact to sandy in lower part, light gray to red brown	22	80
		Sand and gravel, silty, loosely cemented	10	90
		Sand, fine, silty to limy, cemented	8	98
		Sand, fine to medium, clayey to cemented, dark gray	8	106
		Clay, sandy, light gray; contains weathered shale fragments	11	117
Cretaceous--Gulfian
	Pierre shale
		Shale, bentonitic, yellow and yellow brown	3	120

12-32-11cc. Sample log of test hole in the SW cor. sec. 11, T. 12 S., R. 32 W., drilled July 30, 1954. Surface altitude, 2,998.3 feet.			Thickness, feet	Depth, feet
		Soil, black	0.5	0.5
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, weakly cemented, calcareous, yellowish gray; contains abundant gastropod fauna	11.5	12
		Siltstone, clayey, some coarse sand, moderately cemented, very calcareous, grayish orange	5	17
		Siltstone, clayey and sandy, some gravel	2	19
Tertiary--Pliocene
	Ogallala formation
		Sandstone, silty, fine to coarse grained, quartzose and feldspathic, weakly cemented, calcareous, grayish orange	6	25
		Sandstone, medium to coarse grained, much gravel, quartzose and feldspathic, unconsolidated, calcareous, grayish orange	5	30
		Conglomerate, fine to medium arained, much sand, quartzose and feldspathic, loose, calcareous, grayish orange	7	37
		Shale, silty, calcareous, yellowish gray	3	40
		Sandstone, fine to coarse grained, much silt and clay, quartzose and feldspathic, firmly cemented, moderate orange gray	6	46
		Sandstone, fine to coarse grained, much clay and silt, quartzose and feldspathic, firmly cemented, calcareous, orange pink	4	50
		Sandstone, fine to coarse grained, considerable clay, quartzose and feldspathic, calcareous, grayish orange	5	55
		Sandstone, fine to coarse grained, some silt and gravel, quartzose and feldspathic, loose, calcareous, grayish orange	4	59
		Conglomerate, sandy, fine to medium grained, quartzose and feldspathic, loose, slightly calcareous, orayish orange	1	60
		Sandstone, fine to medium grained, some gravel, quartzose and feldspathic, loose, noncalcareous, grayish pink	4	64
Cretaceous--Gulfian
	Pierre shale
		Shale, nonealeareous, light gray and yellow	4	68
		Shale, bentonitic, noncalcareous, medium gray	2	70

12-32-26bc--Sample log of test hole in the SW NW sec. 26, T. 12 S., R. 32 W., drilled July 30, 1954. Surface altitude, 3,023.6 feet; depth to water, 70.2 feet.			Thickness, feet	Depth, feet
		Soil, medium gray	0.5	0.5
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, calcareous, yellowish gray	6.5	7
		Siltstone, considerable fine to coarse sand, quartzose, firmly cemented, very calcareous, grayish pink	3	10
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to, coarse grained, much silt, and some fine gravel, quartzose, firmly cemented, very calcareous, grayish orange pink	5	15
		Sandstone, fine to coarse grained, some fine to medium gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	5	20
		Sandstone, medium to. coarse grained, some fine to medium gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink; contains hard cemented layers of white calcareous material	10	30
		Sandstone, medium to coarse grained, some fine to medium gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	4	34
		Sandstone, fine grained, very silty, quartzose, firmly, cemented, very calcareous, moderate orange pink	6	40
		Sandstone, fine grained, very silty, quartzose, very firmly cemented, very calcareous, moderate orange pink	4	44
		Sandstone, fine to coarse grained, some silt, quartzose, very firmly cemented, very calcareous, moderate orange pink	6	50
		Siltstone, some fine to medium sand, quartzose, very firmly cemented, very calcareous, moderate orange pink	6	56
		Siltstone, some fine sand, quartzose, extremely hard and well cemented, very calcareous, very pale orange	1	57
		Siltstone, clayey, quartzose, moderately cemented, very calcareous, very pale orange	3	60
		Sandstone, fine to coarse grained, some silt, quartzose, moderately cemented, calcareous, grayish orange; contains white to vitreous cherty material	6	66
		Sandstone, fine grained, some medium and coarse sand and silt, quartzose, firmly cemented, calcareous, moderate orange pink	6	72
		Conglomerate, sandy, fine to medium grained much coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange	8	80
		Conglomerate, fine grained, medium to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, pale grayish orange	2	82
		Sandstone, medium to coarse grained, some fine gravel, quartzose and feldspathic, very firmly cemented, calcareous, pale grayish orange	2	84
Cretaceous--Gulfian
	Pierre shale
		Shale, bentonitic, compact, very calcareous, yellowish orange and light gray	4	88
		Shale, bentonitic, compact, noncalcareous, medium gray	2	90

12-34-1bb. Sample log of test hole in the NW cor. sec. 1, T. 12 S., R. 34 W., drilled August 4-5, 1954. Surface altitude, 3,204.1 feet.			Thickness, feet	Depth, feet
		Road fill	2.5	2.5
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown	2.5	5
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains gastropods	5	10
		Silt, quartzose, weakly cemented, calcareous, pale grayish orange; gastropods very abundant	10	20
		Silt, clayey, quartzose, weakly cemented, calcareous, pale grayish orange	6	26
Tertiary--Pliocene
	Ogallala formation
		Siltstone, clayey, some sand, quartzose, weakly cemented, very calcareous, pale grayish orange pink	2	28
		Siltstone, clayey, some fine sand, quartzose, weakly cemented, very calcareous, pale grayish orange pink	3	31
		Limestone or caliche, clayey, firmly cemented, pale grayish orange pink	5	36
		Limestone or caliche, clayey, firmly cemented, pale grayish orange pink; interbedded with thin, moderately cemented silty sandstone layers	7	43
		Sandstone, fine grained, very much silt, quartzose, firmly cemented, very calcareous, very pale orange	2	45
		Sandstone, fine grained, some silt, quartzose, firmly cemented, very calcareous, very pale orange	1	46
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, caleareous, grayish orange pink	4	50
		Conglomerate, medium to coarse crrained, some coarse sand and fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	10	60
		Conglomerate, fine to medium grained, some coarse sand and coarse gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	9.5	69.5
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, calcareous, reddish orange	2.5	72
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, very calcareous, moderate orange pink	4	76
		Siltstone, some fine sand and clay, quartzose, moderately cemented, very calcareous, very pale orange	2	78
		Siltstone, much clay and fine to medium sand, quartzose, moderately cemented, very calcareous, very pale orange	6	84
		Conglomerate, fine to coarse grained, some medium to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	8	92
		Sandstone, fine grained, some silt and clay, quartzose, firmly cemented, very calcareous, grayish orange pink	1	93
		Sandstone, fine grained, much medium sand, and some silt, quartzose, moderately cemented, calcareous, moderate reddish orange	7	100
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, calcareous, moderate reddish orange	5	105
		Sandstone, fine grained, much silt and clay, quartzose, moderately cemented, calcareous, grayish orange	5	110
		Siltstone, much clay and fine sand, quartzose, moderately cemented, very calcareous, pale orange	2	112
		Siltstone, some fine sand and clay, quartzose, moderately to firmly cemented, calcareous, grayish orange pink	2	114
		Sandstone, fine grained, some silt and clay, quartzose, moderately cemented, calcareous, grayish orange pink	6	120
		Siltstone, much fine sand, and some clay, quartzose, moderately cemented, very calcareous, pale orange	12	132
		Sandstone, medium to coarse grained, some fine, gravel and fine sand and silt, quartzose, moderately cemented, calcareous, grayish orange pink	5	137
		Conglomerate, fine to medium grained, some fine to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	8	145
		Siltstone, clayey, quartzose, moderately to firmly cemented, calcareous, grayish orange pink	4	149
		Siltstone, very much clay, quartzose, firmly cemented, calcareous, pale grayish orange	1	150
		Siltstone, some clay and fine sand, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	6	156
		Siltstone, much fine sand, quartzose, moderately cemented, calcareous, reddish orange	5	161
		Sandstone, coarse grained, some silt, fine to medium sand, and fine gravel, quartzose, moderately cemented, calcareous, grayish orange pink	4	165
		Sandstone, fine grained, much silt, and some medium sand, quartzose, moderately cemented, calcareous, reddish orange	9	174
		Sandstone, medium grained,, much silt, clay, and fine sand, quartzose, moderately cemented, calcareous, pale grayish orange	1	175
		Siltstone, some fine to medium sand and clay, quartzose, moderately cemented, very calcareous pale grayish orange; interbedded with thin, moderately cemented conglomerate layers	8	183
		Sandstone, medium to coarse grained, some silt and fine sand, quartzose, weakly cemented, calcareous, pale grayish orange	3	186
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately to firmly cemented, noncalcareous, light gray to pale yellowish orange	4	190

12-34-11dd. Sample log of test hole in the SE cor. sec. 11, T. 12 S., R. 34 W., drilled August 4, 1954. Surface altitude, 3,192.0 feet.			Thickness, feet	Depth, feet
		Soil, medium gray	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, slightly calcareous, pale yellowish brown	1	2
		Silt, very little clay, weakly cemented, calcareous, very pale yellowish brown	2	4
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains gastropod fauna	16	20
		Silt, much clay, quartzose, moderately cemented, calcareous, very pale yellowish brown; contains gastropod fragments	5	25
		Silt, some clay and fine to coarse sand, quartzose, moderately cemented, calcareous, very pale yellowish brown	2	27
		Silt, clayey, some fine to coarse sand, moderately cemented, calcareous, grayish orange	3	30
Tertiary--Pliocene
	Ogallala formation
		Siltstone, some clay and fine to coarse sand, quartzose, moderately to firmly cemented, very calcareous, very pale orange	10	40
		Siltstone, some fine to medium sand, and much clay, quartzose, moderately cemented, very calcareous, very pale orange	4.5	44.5
		Sandstone, medium to coarse grained, some fine gravel and sand, quartzose, weakly cemented, very calcareous, grayish orange pink	5.5	50
		Sandstone, medium grained, much fine gravel and fine sand, weakly cemented, calcareous, grayish orange pink	4	54
		Conglomerate, fine grained, some fine to coarse sand and silt, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	3	57
		Conglomerate, fine to medium grained, some fine to coarse sand and silt, quartzose and feldspathic, loose, calcareous, grayish orange pink	3	60
		Conglomerate, fine to coarse grained, some fine to coarse sand and cobbles, quartzose and feldspathic, loose, calcareous, grayish orange pink	5	65
		Shale, some silt and fine sand, moderately to firmly cemented, calcareous, grayish orange pink	5	70
		Siltstone, much fine sand, and some medium to coarse sand, quartzose, moderately to firmly cemented, very calcareous, very pale orange	5	75
		Sandstone, fine grained, some silt, medium to coarse sand, and gravel, quartzose, moderately cemented, calcareous, grayish orange	1	76
		Conglomerate, fine to medium grained, some medium to coarse sand and coarse gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	4	80
		Conglomerate, fine grained, some fine to coarse sand and silt, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	4.5	84.5
		Sandstone, fine grained, much silt, quartzose, firmly cemented, calcareous and siliceous, white to very pale orange	1	85.5
		Conglomerate, fine grained, some fine to coarse sand and silt, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink; a very hard layer or boulder about 6 inches thick at 89 feet	4.0	89.5
		Sandstone, fine grained, much silt and clay, quartzose, moderately cemented, calcareous, grayish orange	5.5	95
		Siltstone, some fine sand and clay, quartzose, moderately cemented, calcareous, grayish orange	5	100
		Siltstone, much clay, and some fine to medium sand, quartzose, moderately cemented, calcareous, grayish orange	5	105
		Sandstone, fine to medium grained, some silt, quartzose, loose, calcareous, grayish orange pink	1	106
		Siltstone, much clay, and some fine to coarse sand, quartzose, moderately cemented, calcareous, grayish orange	4	110
		Sandstone, fine grained, some silt and medium to coarse sand, quartzose, moderately cemented, calcareous, moderate reddish orange	6	116
		Sandstone, fine to medium grained, much silt, and some coarse sand and fine to medium gravel, quartzose, moderately cemented, calcareous, grayish orange pink	7	123
		Sandstone, fine grained, much silt, and some clay and medium sand, moderately cemented, calcareous, moderate reddish orange	7	130
		Sandstone, fine grained, much medium to coarse sand, quartzose, moderately cemented, calcareous, moderate reddish orange	3.5	133.5
		Sandstone, medium to coarse grained, some fine to medium gravel and yellow shale fragments, quartzose, moderately cemented, calcareous, grayish orange	4.5	138
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately cemented, noncalcareous, light gray to dark yellowish orange	16	154
		Shale, bentonitic, firmly cemented, noncalcareous, dark gray	2	156

12-34-26da. Sample log of test hole 50 feet south of the NE cor. SE sec. 26, T. 12 S., R. 34 W., drilled August 3, 1954. Surface altitude, 3,158.2 feet.			Thickness, feet	Depth, feet
		Soil, medium gray	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown	4	5
		Silt, some fine and medium sand, quartzose, weakly cemented, calcareous, pale yellowish brown; contains some gastropods	4	9
		Silt, some clay and fine sand, quartzose, moderately cemented, calcareous, pale yellowish brown	1	10
Tertiary--Pliocene
	Ogallala formation
		Shale, some silt and fine to coarse sand, moderately to firmly cemented, calcareous, pale brown	5	15
		Sandstone, fine grained, some silt and medium to coarse sand, quartzose, moderately to firmly cemented, very calcareous, grayish orange pink	5	20
		Sandstone, fine to medium grained, some coarse sand and silt, quartzose, moderately to firmly cemented, very calcareous, grayish orange pink	5	25
		Sandstone, fine to medium grained, some silt and coarse sand, moderately to firmly cemented, very calcareous, grayish orange pink to very pale orange	14.5	39.5
		Sandstone, coarse grained, much fine gravel, quartzose, moderately cemented, calcareous, grayish orange pink	6.5	46
		Sandstone, fine to coarse grained, many shale fragments, quartzose, weakly cemented, calcareous, grayish orange	3	49
		Shale, moderately compact, noncalcareous, grayish yellow	6	55
		Shale, moderately to firmly cemented, noncalcareous, grayish yellow	7	62
Cretaceous--Gulfian
	Pierre shale
		Shale, somewhat bentonitic, firmly cemented, noncalcareous, medium gray	3	65
		Shale, bentonitic, firmly cemented, noncalcareous, medium gray; contains unabraded crystals of gypsum	5	70

12-35-1ad. Sample log of test hole 6 feet north of the SE cor. NE sec. 1, T. 12 S., R. 35 W., drilled August 10-11, 1954. Surface altitude, 3,255.3 feet; depth to waater, 143.5 feet.			Thickness, feet	Depth, feet
		Soil and road fill, silty, some clay and humic material, quartzose, weakly cemented, calcareous, yellowish, brown	4	4
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown	6	10
		Silt, much clay, quartzose, weakly cemented,, calcareous, pale yellowish brown; contains some gastropods	7	17
		Silt, much clay, quartzose, weakly cemented, calcareous, pale yellowish brown; contains an abundant gastropod fauna	8	25
		Siltstone, slightly sandy and clayey, quartzose, moderately cemented, calcareous, grayish orange brown	3	28
		Siltstone, some fine sand and clay, quartzose, moderately cemented, very calcareous, pale grayish orange pink	9	37
Tertiary--Pliocene
	Ogallala formation
		Sandstone, silty, fine grained, much medium sand, quartzose, moderately cemented, calcareous, grayish orange pink	3	40
		Sandstone, medium to coarse grained, some fine gravel, quartzose, weakly cemented, calcareous, grayish orange pink	10	50
		Siltstone, some fine sand, quartzose, moderately cemented, very calcareous, very pale orange	4.5	54.5
		Siltstone, much fine sand, quartzose, weakly cemented, very calcareous, very pale orange	4.5	59
		Sandstone, fine grained, some silt and medium sand, quartzose, weakly cemented, calcareous, reddish orange	1	60
		Sandstone, fine to medium grained, much reddish clay, quartzose, weakly cemented, reddish orange	10	70
		Sandstone, medium to coarse, some fine gravel, quartzose, loose, calcareous, grayish orange pink	2	72
		Sandstone, silty, fine grained, much medium sand, quartzose, moderately cemented, calcareous, grayish orange pink; contains white calcareous layers	5	77
		Conglomerate, fine to medium grained, some coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	3	80
		Conglomerate, medium to coarse grained, some fine gravel and coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	16	96
		Conglomerate, fine to medium grained, some fine to coarse sand and silt, quartzose and feldspathic, firmly cemented, very calcareous, pale grayish orange pink	1.5	97.5
		Conglomerate, fine to medium grained, some medium to coarse sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	16.5	114
		Shale, silty, moderately cemented, very calcareous, grayish orange pink	2	116
		Sandstone, medium to coarse grained, some fine gravel, quartzose, weakly cemented, calcareous, grayish orange pink	20	136
		Siltstone, clayey, quartzose, moderately cemented, calcareous, very pale yellowish brown	4	140
		Siltstone, clayey, quartzose, moderately cemented, calcareous, pale grayish orange	5	145
		Sandstone, fine grained, much clay and silt, quartzose, moderately cemented, calcareous, reddish orange	5	150
		Siltstone, coarse, much fine sand, quartzose, moderately cemented, calcareous, grayish orange pink	3	153
		Sandstone, medium to coarse grained, some fine to medium gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	7	160
		Siltstone, much fine sand, quartzose, moderately cemented, calcareous, grayish orange	24	184
		Sandstone, coarse grained, much fine gravel, quartzose, weakly cemented, calcareous, orayish orange pink; contains fragments of greenish and yellowish shale	6	190
		Sandstone, coarse grained, some fine gravel, quartzose, weakly cemented, calcareous, grayish orange; contains abundant shale fragments	4	194
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately cemented, noncalcareous, light gray and yellowish orange	6	200
		Shale, moderately to firmly cemented, noncalcareous, light gray and yellowish orange; contains dark medium-gray noncalcareous clay shale	10	210

12-35-25dd. Sample log of test hole 0.1 mile north of the SE cor. sec. 25, T. 12 S., R. 35 W., drilled August 11, 1954. Surface altitude, 3,166.9 feet; depth to water, 69.15 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, some medium to coarse sand, quartzose; weakly cemented, calcareous, pale yellowish brown; contains some gastropod fragments	4	5
		Silt, some medium to coarse sand and fine gravel, quartzose, weakly cemented, calcareous, pale yellowish brown	2	7
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to coarse grained, much fine gravel, and some silt, quartzose and feldspathic, loose, calcareous, grayish orange	3	10
		Sandstone, fine to coarse grained, much fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	7	17
		Shale, moderately cemented, calcareous, very pale yellowish brown	3	20
		Shale, moderately cemented, calcareous, pale yellowish brown; contains white calcareous flecks	2	22
		Limestone or caliche, clayey, moderately cemented, white	3	25
		Sandstone, medium to coarse grained, much fine gravel, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink	2	27
		Shale, moderately to firmly cemented, noncalcareous, grayish orange pink	3	30
		Shale, some silt, moderately to firmly cemented, slightly calcareous, grayish orange pink to pale yellowish brown	5	35
		Shale, some silt and fine sand, moderately to firmly cemented, calcareous, pale yellowish brown	15	50
		Shale, silty, somewhat micaceous, moderately to firmly cemented, calcareous, pale yellowish brown	61	56
		Conglomerate, fine to medium grained, some medium and coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange	6	62
		Shale, slightly calcareous, pale red	6	68
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately cemented, calcareous, pale reddish orange	2	70
		Sandstone, fine to medium grained, some silt and coarse sand, quartzose, moderately cemented, calcareous, grayish orange	6	76
		Sandstone, medium to coarse grained, some fine gravel and fine sand, quartzose and feldspathic, weakly cemented, calcareous, grayish orange	5	81
Cretaceous--Gulfian
	Pierre shale
		Shale, moderately to firmly cemented, noncalcareous, light gray and yellowish orange	9	90
		Shale, bentonitic, moderately to firmly cemented, noncalcareous, light gray and yellowish orange	4	94
		Shale, bentonitic, firmly cemented, noncalcareous, medium dark gray	6	100

12-36-12dd. Sample log of test hole 0.2 mile north of the SE cor. sec. 12, T. 12 S., R. 36 W., drilled August 12-13, 1954. Surface altitude, 3,272.3 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains some gastropods	5	6
		Silt, sliglitly clayey, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains an abundant gastropod fauna	4	10
		Silt, slightly clayey, quartzose, weakly cemented, calcareous, very pale yellowish brown	5	15
		Silt, some fine to coarse sand, quartzose, weakly cemented, very pale yellowish brown	5	20
Tertiary--Pliocene
	Ogallala formation
		Sandstone, fine to coarse grained, much clay and silt, and some fine gravel, quartzose, moderately cemented, calcareous, grayish orange to grayish orange pink	6	26
		Sandstone, fine to coarse grained, some fine to medium gravel, quartzose and feldspathic, moderately to firmly cemented, calcareous, grayish orange pink; contains firmly cemented layers	4	30
		Sandstone, fine to coarse grained, much fine gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	5	35
		Conglomerate, fine to medium grained, much coarse sand, and some coarse gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	5	40
		Sandstone, coarse grained, some fine and medium gravel, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink	3	43
		Shale, much silt, moderately cemented, calcareous, very pale grayish orange	16	59
		Siltstone, much clay and fine sand, quartzose, moderately cemented, calcareous, very pale yellowish brown	8	67
		Siltstone, much clay and fine sand, quartzose, firmly cemented, calcareous, very pale yellowish brown	16.5	83.5
		Sandstone, medium to coarse grained, much fine gravel, quartzose and feldspathic, weakly cemented, calcareous, pale grayish orange	7.5	91
		Sandstone, fine grained, much silt, and some medium sand, quartzose, moderately cemented, calcareous, pale reddish orange	16.5	107.5
		Sandstone, fine to medium grained, some coarse sand and fine gravel, quartzose and feldspathic, moderately cemented, calcareous, pale grayish orange	2.5	110
		Sandstone, coarse grained, much fine gravel, quartzose and feldspathic, moderately cemented, calcareous, pale grayish orange	3.5	113.5
		Sandstone, fine grained, much clay and silt, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	6.5	120
		Sandstone, fine to medium grained, much silt, and some clay and fine gravel, quartzose, moderately cemented, calcareous, pale grayish orange	5	125
		Sandstone, fine grained, much clay and silt, quartzose, moderately to firmly cemented, calcareous, pale yellowish brown	3	128
Cretaceous--Gulfian
	Pierre shale
		Shale, bentonitic, moderately to firmly cemented, noncalcareous, grayish to yellowish orange	12	140

12-36-25aa. Sample log of test hole 100 feet south of the NE cor. sec. 25, T. 12 S., R. 36 W., drilled August 12, 1954. Surface altitude, 3,167.4 feet.			Thickness, feet	Depth, feet
		Soil	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown	4	5
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains gastropods	5	10
		Silt, some clay, slightly sandy, quartzose, weakly cemented, calcareous, very pale yellowish orange	3	13
		Siltstone, fine grained, some clay, slightly sandy, quartzose, moderately cemented, calcareous, very pale yellowish brown to grayish orange	4	17
		Siltstone, fine grained, much clay, slightly sandy, quartzose, moderately cemented, calcareous, grayish orange	3	20
		Siltstone, much clay and fine sand, quartzose, moderately cemented, calcareous, grayish orange	2	22
Cretaceous--Gulfian
	Pierre shale
		Shale, considerable gypsum, moderately to firmly cemented, noncalcareous, grayish orange	6	28
		Shale, very much crystalline gypsum, firmly cemented, noncalcareous, yellowish gray	12	40
		Shale, bentonitic, much crystalline gypsum, firmly cemented, noncalcareous, yellowish gray	6	46
		Shale, much crystalline gypsum, firmly cemented, noncalcareous, yellowish gray to grayish orange	4	50
		Shale, bentonitic, much crystalline gypsum, firmly cemented, noncalcareous, yellowish gray	26	76
		Shale, bentonitic, much crystalline gypsum, firmly cemented, noncalcareous, light olive gray to medium dark gray	4	80

12-37-19aa. Drillers log of test hole of Garvin E. Gfeller in the NE NE sec. 19, T. 12 S., R. 37 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group
		Soil and clay	33	33
		Clay	12	45
		Sand	6	51
	Meade (?) Group
		Clay	3	54
		Gravel	8	62
		Clay	3	65
Cretaceous--Gulfian
	Pierre shale
		"Soapstone"	2	67

12-37-21aa. Drillers log of test hole of Garvin E. Gfeller in the NE NE sec. 21, T. 12 S., R. 37 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group and Meade Group
		Clay, sandy	45	45
		Clay, yellow	20	65
Cretaceous--Gulfian
	Pierre shale
		Shale, blue	50	115

12-37-21dd. Drillers log of test hole of Garvin E. Gfeller in the SE SE sec. 21, T. 12 S., R. 37 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn Group and Meade (?) Group
		No sample	26	26
		Clay, sandy	22	48
		Clay	13	61
Cretaceous--Gulfian
	Pierre shale
		Shale	49	110

13-32-2cc. Sample log of test hole 300 feet north of the SW cor. sec. 2, T. 13 S., R. 32 W., drilled July 31, 1954. Surface altitude, 3,024.1 feet.			Thickness, feet	Depth, feet
		Soil, gray	0.5	0.5
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, yellowish gray; contains gastropod fragments	4.5	5
		Silt, slightly sandy, weakly cemented, calcareous, yellowish gray; contains many gastropods	4	9
Tertiary--Pliocene
	Ogallala formation
		Siltstone, clayey, some sand, quartzose, firmly cemented, very calcareous, pale grayish orange pink	1	10
		Siltstone, clayey and somewhat sandy, some fine gravel, quartzose, firmly cemented, very calcareous, pale grayish orange pink	7	17
		Siltstone, clayey, some sand and gravel, quartzose, very firmly cemented, very calcareous, white	1	18
		Sandstone, fine to coarse grained, some fine to medium gravel and considerable silt, moderately cemented, calcareous, grayish orange pink; contains alternating layers of silt and sandstone	2	20
		Siltstone, well-sorted coarse silt and fine sand, quartzose, very firmly cemented, very calcareous, very pale orange	4	24
		Conglomerate, fine grained, some coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	1	25
		Siltstone, much fine sand,, quartzose, firmly cemented, very calcareous, white	4	29
		Sandstone, fine grained, some silt, quartzose, moderately cemented, calcareous, moderate reddish orange	1	30
		Sandstone, fine grained, much silt, quartzose, firmly cemented, calcareous, moderate reddish orange	5.5	35.5
		Sandstone, fine grained, some silt, quartzose, moderately to firmly cemented, calcareous, moderate orange pink	8.5	44
		Sandstone, fine grained and very silty, some coarse sand, quartzose, moderately cemented, calcareous, moderate orange pink	6	50
		Siltstone, clayey, slightly sandy, quartzose, moderately to firmly cemented, calcareous, pale orange	3	53
		Sandstone, fine to coarse grained, some silt, quartzose, moderately cemented, calcareous, pale grayish orange	2	55
		Sandstone, fine to coarse grained, some silt and fine to medium gravel, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	4.5	59.5
		Sandstone, medium to coarse grained, some fine gravel and clay, quartzose, moderately cemented, calcareous, pale grayish orange; large shale boulder at 59.5 feet	4.5	64
		Conglomerate, fine to medium grained, some clayshale fragments and sand, quartzose and feldspathic, moderately cemented, calcareous, very pale yellowish orange	7	71
Cretaceous--Gulfian
	Pierre shale
		Shale, compact, slightly calcareous, grayish yellowish green	7.5	78.5
		Shale, compact, slightly calcareous, grayish yellowish green and yellowish orange	0.5	79
		Shale, compact, slightly calcareous, light medium gray	1	80
		Shale, compact, noncalcareous, medium gray; contains ferruginous material and gypsum crystals	2	82
		Shale, bentonitic compact, noncalcareous, medium gray; contains abundant gypsum crystals	8	90

13-32-27aa3. Sample log of test hole in the NE cor. sec. 27, T. 13 S., R. 32 W., drilled August 2, 1954. Surface altitude, 3,002.4 feet.			Thickness, feet	Depth, feet
		Soil, light medium gray	0.7	0.7
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, yellowish gray; contains an abundant gastropod fauna	9.3	10
		Silt, some fine to medium sand, quartzose, weakly cemented, calcareous, yellowish gray	4	14
		Silt, considerable fine to medium sand, weakly cemented, calcareous, grayish orange	2	16
		Silt, some fine to coarse sand, quartzose, weakly cemented, calcareous, grayish orange; contains gastropod fragments and some gypsum	2	18
		Silt and fine to coarsc sand, quartzose, some crystals of gypsum, weakly cemented, calcareous, grayish orange	2	20
		Silt, some fine to coarse sand and clay, quartzose, moderately cemented, calcareous, grayish orange	6	26
Tertiary--Pliocene
	Ogallala formation
		Shale, some silt and fine to coarse sand, moderately cemented, calcareous, grayish orange pink	2	28
		Shale, some silt and fine to coarse sand, compact, calcareous, pale grayish orange pink	3	31
		Sandstone, fine to coarse grained, some fine gravel, quartzose, loose, calcareous, grayish orange pink	2	33
		Siltstone, much fine sand, quartzose, very firmly cemented, very calcareous, light gray to white	1	34
		Sandstone, medium to coarse grained, some fine gravel, quartzose, loose, calcareous, grayish orange pink	3.5	37.5
		Shale, compact, slightly calcareous, pale olive to grayish orange pink	1.5	39
		Sandstone, medium to coarse grained, some fine gravel, quartzose, some feldspar, weakly cemented, slightly calcareous, pale grayish orange	1	40
		Sandstone, fine to coarse grained, some fine gravel, quartzose, weakly cemented, slightly calcareous, pale grayish orange	3.5	43.5
		Sandstone, clayey, fine grained, shale and bentonite fragments, weakly cemented, slightly calcareous, grayish orange	6	49.5
Cretaceous--Gulfian
	Pierre shale
		Shale, bentonitic, compact, slightly calcareous, pale yellowish orange and light gray	0.5	50
		Shale, bentonitic, compact, noncalcareous, medium gray	10	60

13-33-6bb. Drillers log of livestock well owned by S. Dirks in the NW NW sec. 6, T. 18 S., R. 33 W., drilled in 1955 by John Heim. Surface altitude, 3,055 feet; depth to water, 695 feet.			Thickness, feet	Depth, feet
		Soil	2	2
Quaternary--Pleistocene
	Meade Group or Sanborn Group
		Silt and clay, yellow	38	40
Cretaceous--Gulfian
	Pierre shale
		Shale, dark gray, tough drilling	125	165
	Niobrara formation
		Chalk, light gray	35	200
		Chalk, medium gray	580	780
		Limestone, white	55	835
	Carlile shale
		Shale, sandy, dark gray	15	850
		Shale, dark gray	195	1,045
		Sandstone, clayey	5	1,050
	Greenhorn limestone
		Limestone, gray	25	1,075
		Shale, dark gray	55	1,130
	Graneros shale
		Shale, sandy, dark gray	45	1,175
	Dakota formation
		Sandstone, silty and clayey, dark gray	20	1,195
		Sandstone, white	25	1,220
		Shale, compact, dark gray	10	1,230

13-36-12aa. Sample log of test hole 40 feet west of the NE cor. sec. 12, T. 13 S., R. 36 W., drilled August 12, 1954. Surface altitude, 3,077.7 feet.			Thickness, feet	Depth, feet
		Soil, silty, somewhat clayey, quartzose, weakly cemented, calcareous, pale yellowish brown	4	4
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains some gastropods and white calcareous material	11	15
		Silt, slightly sandy, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains a few gastropods	5	20
		Silt, some medium to coarse sand and clay, quartzose, weakly cemented, calcareous, very pale yellowish brown; contains some gastropods	6	26
		Silt, much fine to coarse sand and clay, weakly cemented, calcareous, grayish, orange	3	29
		Silt, much fine to coarse sand and clay, quartzose, weakly cemented, very calcareous, pale grayish orange pink; contains much white calcareous material	3	32
	Sanborn Group or Meade Group
		Conglomerate, medium to coarse grained, some fine gravel and medium to coarse sand, quartzose and feldspathic, loose, calcareous, grayish orange pink	8	40
		Siltstone, coarse grained, much fine to medium sand, quartzose, moderately to weakly cemented, calcareous, grayish orange	12	52
		Conglomerate, fine grained, some fine to coarse sand and medium gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	8	60
		Conglomerate, fine grained, some fine to coarse sand and medium gravel, quartzose and feldspathic, weakly cemented, calcareous, grayish orange pink; contains some large cobbles or boulders	10	70
		Conglomerate, fine to medium grained, some sand, quartzose and feldspathic, loose, slightly calcareous, grayish orange pink	7	77
		Conglomerate, fine to medium grained, some sand, quartzose and feldspathic, very firmly cemented, very calcareous, very pale orange	2	79
		Conglomerate, medium to coarse grained, some fine gravel, quartzose and feldspathic, loose, calcareous, grayish orange pink	9.5	88.5
Cretaceous--Gulfian
	Niobrara formation
		Chalk, moderately cemented, pale yellowish orange	2.5	91
		Chalk, moderately to firmly cemented, medium light gray	1	92

14-32-23bb. Sample log of test hole in the NW cor. sec. 23, T. 14 S., R. 32 W., drilled August 2, 1954. Surface altitude, 2,820.3 feet.			Thickness, feet	Depth, feet
		Soil, medium gray	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown; contains gastropods	6	7
		Silt, considerable clay, and some fine sand, moderately cemented, calcareous, pale yellowish brown	5	12
	Meade (?) Group
		Shale, some silt and fine to coarse sand, moderately cemented, calcareous, pale grayish orange	5	17
		Shale, much silt, and some fine to coarse sand, moderately cemented, calcareous, very pale orange	3	20
		Shale very silty, very little sand, moderately cemented, calcareous, very pale orange	5	25
		Siltstone, some fine to coarse sand, and considerable clay, moderately cemented, calcareous, pale yellowish orange; contains some gypsum	8	33
		Shale, some fine to coarse sand and silt, moderately cemented, very calcareous, very pale orange	3	36
		Shale, some silt and medium to coarse sand, moderately cemented, very calcareous, very pale orange	4	40
Cretaceous--Gulfian
	Niobrara formation
		Chalk, clayey, moderately compact, pale yellowish orange	3	43
		Chalk, clayey, moderately to firmly cemented, pale yellowish orange and reddish orange layers	7	50
		Chalk, some clay and gypsum crystals, moderately to firmly cemented, pale yellowish orange; contains gray clayey chalk	10	60
		Chalk, clayey, moderately to firmly cemented, pale grayish orange	5	65
		Chalk, clayey, firmly cemented, light to medium light gray	4.5	69.5

14-35-24bb. Sample log of test hole 325 feet south of the NW cor. sec. 24, T. 14 S., R. 35 W., drilled August 3, 1954. Surface altitude, 3,202 feet.			Thickness, feet	Depth, feet
		Road fill	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt, quartzose, weakly cemented, calcareous, pale yellowish brown; contains an abundant gastropod fauna	8	10
		Silt, much fine to medium sand, quartzose, weakly cemented, very calcareous, grayish orange pink	5	15
		Silt, some fine sand, quartzose, weakly cemented, calcareous, grayish orange pink; contains gastropod fragments	1	16
Tertiary--Pliocene
	Ogallala formation
		Siltstone, some fine sand, quartzose, very firmly cemented, very calcareous and siliceous, white to olrayish orange pink; extremely hard layer at 19.5 feet cemented by clear vitreous siliceous material	4	20
		Siltstone, much fine to coarse sand, quartzose, very firmly cemented, calcareous and siliceous, white to grayish orange pink	5	25
		Conglomerate, fine to medium grained, some medium to coarse sand, quartzose and feldspathic, moderately cemented, calcareous, grayish orange pink to gray	5	30
		Shale, clayey, moderate'Ly cemented, noncalcareous, yellowish gray	7	37
		Shale, clayey, moderately cemented, slightly calcareous, yellowish gray	1	38

15-32-34cc. Sample log of test hole in the SW cor. sec. 34, T. 15 S., R 32 W., drilled August 2, 1954. Surface altitude, 3,007.7 feet.			Thickness, feet	Depth, feet
		Soil, medium gray	1	1
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, calcareous, dark yellow gray	2	3
		Silt, quartzose, weakly cemented, calcareous, yellowish gray; contains gastropods	2	5
		Silt, quartzose, weakly cemented, calcareous, yellowish gray; contains a very abundant gastropod fauna	5	10
		Silt, clayey, quartzose, weakly cemented, calcareous, yellowish gray; contains many gastropods	6	16
		Silt, considerable clay, quartzose, weakly cemented, calcareous, yellowish gray; contains gastropod fragments	2	18
		Silt, clayey, some fine to coarse sand, quartzose, weakly cemented, very calcareous, pale grayish orange; contains much white calcareous material	2	20
Tertiary--Pliocene
	Ogallala formation
		Shale, somewhat silty, and some fine to coarse sand, moderately cemented, very calcareous, very pale orange; contains fragments of white calcareous siltstone	7	27
		Shale, much silt and fine sand, moderately cemented, very calcareous, very pale orange	2	29
		Sandstone, fine to coarse grained, some silt and clay, quartzose, loose, calcareous, grayish orange pink	1	30
		Siltstone, much clay, quartzose, firmly cemented, very calcareous, very pale orange	5.5	35.5
		Siltstone, some clay and fine to coarse sand, firmly cemented, very calcareous, very pale orange	4.5	40
		Siltstone, some fine to coarse sand and clay, quartzose, firmly cemented, very calcareous, very pale orange	5	45
		Siltstone, some fine sand and clay, quartzose, moderately to firmly cemented, calcareous, pale grayish orange pink	3	48
		Siltstone, some fine sand and clay, quartzose, moderately to firmly cemented, calcareous, pale grayish orange pink; contains white calcareous fragments	2	0
		Siltstone, sandy, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	4	54
		Sandstone, fine grained, considerable silt, and some medium sand, quartzose, moderately to firmly cemented, calcareous, pale reddish orange	6	60
		Sandstone, medium to coarse grained, much silt and fine sand, quartzose, moderately cemented, calcareous, very pale orange	5	65
		Sandstone, medium to coarse grained, much silt and fine gravel, quartzose, moderately cemented, calcareous, pale grayish orange pink	5	70
		Sandstone, medium to coarse grained, some fine gravel and silt, quartzose and somewhat feldspathic, loose, calcareous, pale grayish orange pink	3	73
		Shale, much fine sand and silt, firmly cemented, very calcareous, white to very pale orange	1	74
		Conglomerate, fine to medium grained, some coarse sand, quartzose and feldspathic, moderately cemented, calcareous, pale grayish orange pink	1	75
		Siltstone, clayey, quartzose, moderately to firmly cemented, very calcareous, very pale orange; contains siliceous fragments	5	80
		Siltstone, some fine to medium sand, quartzose, moderately cemented, calcareous, pale reddish orange	2	82
		Siltstone, some fine to medium sand, quartzose, moderately cemented, very calcareous, very pale orange	8	90
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately to firmly cemented, very calcareous, very pale orange	10	100
		Sandstone, fine grained, very much silt, quartzose, moderately to firmly cemented, very calcareous, moderate orange pink	5	105
		Sandstone, fine grained, some silt and medium sand, quartzose, moderately to firmly cemented, very calcareous, very pale orange	8	113
		Sandstone, coarse grained, some silt and fine to medium sand, quartzose, moderately cemented, very calcareous, pale grayish orange pink	3	116
		Siltstone, some fine to medium sand, quartzose, moderately cemented, very calcareous, very pale orange	4	120
		Siltstone, some fine sand and clay, quartzose, moderately cemented, very calcareous, very pale orange	4	124
		Sandstone, fine to coarse grained, some fine gravel and silt, quartzose, weakly cemented, calcareous, pale grayish orange pink	11	135
		Conglomerate, fine to medium grained, some medium to coarse sand and silt, quartzose and feldspathic, weakly cemented to loose, calcareous, grayish orange pink; a very hard cemented zone at 138.5 feet	5	140
		Sandstone, fine to medium grained, much reddish clay, and some fine gravel and silt, quartzose, moderately to firmly cemented, calcareous, pale grayish orange	6	146
		Shale, much silt, and some fine sand, moderately cemented, very calcareous, pale yellowish orange	4	150
		Shale, chalky, much clay, and some sand, moderately cemented, very calcareous, pale yellowish brown	3	153
Cretaceous--Gulfian
	Niobrara formation
		Chalk, clayey, moderately to firmly cemented, medium light gray	2	155

15-34-13cd. Sample log of test hole in the SE SW sec. 13, T. 15 S., R. 34 W., drilled August 3, 1954.			Thickness, feet	Depth, feet
		Road fill	3	3
Quaternary--Pleistocene
	Sanborn Group
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains some chalk fragments and many gastropods	3	6
		Silt, clayey, quartzose, weakly cemented, calcareous, pale yellowish brown; contains abundant yellow chalky fragments	1	7
		Silt, much clay, and some medium sand, quartzose, weakly cemented, calcareous, pale yellowish brown; contains fragments of yellow chalk as much as 10 mm in diameter	3	10
		Silt, considerable clay and yellow chalky fragments, and some sand, quartzose, weakly cemented, very pale yellowish orange	5	15
Cretaceous--Gulfian
	Niobrara formation
		Chalk, clayey, firmly cemented, white to yellowish orange	5	20

15-36-19bb. Sample log of test hole in the NW NW sec. 19, T. 15 S., R. 36 W. (Bradley and Johnson, 1957), drilled by State Geological Survey, 1951. Surface altitude, 3,372.0 feet.			Thickness, feet	Depth, feet
		Soil, silt and clay, black	2	2
Quaternary--Pleistocene
	Sanborn Group
		Silt, tan gray; contains some tan clay	10	12
		Silt, tan gray and brown; contains some tan clay	7	19
Tertiary--Pliocene
	Ogallala formation
		Clay, limy to silty, tan to light tan	10.5	29.5
		Sand, fine to coarse, silty to sandy, embedded clay, tan	5.5	35
		Sand, fine to coarse, and some limy to sandy clay	14	49
		Opaline quartzite	5.5	54.5
		Sand, fine to coarse, and some clay	6.5	61
		Sand, fine to coarse, and tan-yellow clayey silt	5	66
Cretaceous--Gulfian
	Niobrara formation
		Clay, silty, yellow to yellow orange	5.5	71.5
		Shale, clayey, gray	2	73.5

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Kansas Geological Survey, Geology
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