---

Start
Contents
Introduction
Geography
Geology
Formations
Hydrology
Conclusions
Well Records
Water Levels
Logs
References
Plates

Prev Page--Grant County Logs || Next Page--References

---

Logs of Wells and Test Holes

The following are logs of 95 test holes drilled in Grant and Stanton counties. Sixty-nine of these test holes were drilled by the State and Federal Geological Surveys and are headed "Sample log of test hole in . . . "

These tests were logged by the authors during drilling and supplemented by studying the formation samples. Twenty-six of the test holes were drilled by commercial well drillers for individual land owners, and formation samples were collected; these are headed "Sample logs of test holes drilled by . . . " These 26 test holes were logged by the personnel of the Geological Survey from the formation samples and the descriptions may differ somewhat from that of the drillers.

In addition, 342 test holes drilled and logged by commercial well drillers are summarized in Table 19 and Table 20. An asterisk after the well number in Tables 19 and 20 indicates that a descriptive log is also included in this report, and an "e" after the altitude means that the altitude was estimated. Table 2 presents similar information from electrical and radioactivity logs.

Stanton County

27-39-13bda--Sample log of test hole drilled in NE SE NW sec. 13, T. 27 S., R. 39 W., 0.3 mile south and 25 feet west of N 1/4 cor. sec. 13; September 3, 1959; altitude of land surface, 3,180 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Silt, gray	5	5
			Silt, brownish-gray	5	10
			Silt, sandy, caliche-cemented, light-gray	20	30
			Sand, fine to medium, caliche-cemented, buff-tan	5	40
			Sand, very coarse, and fine to medium gravel	10	50
			Sand, very coarse; and fine to medium gravel (probably occurring in thin beds)	19	69
	Pliocene
		Ogallala Formation
			Clay, silty, tan-brown	6	75
			Sand, fine to coarse; predominantly quartz	5	80
			Sand, fine, and tan-brown silt; silt occurs as thin beds	15	95
			Silt, buff-tan; with fine to medium sand; caliche-cemented	15	110
			Sand, fine to coarse, predominantly quartz; with buff-tan silt	13	123
			Silt, buff-tan; with fine sand	17	140
			Sand, medium to very coarse; predominantly quartz; with buff-tan silt	15	155
			Silt, buff-tan; with fine to medium sand	35	190
Cretaceous
	Lower Cretaceous
		Dakota Formation [Lower (?) Cretaceous]
			Sandstone, fine, friable, red-brown	23	213
			Sandstone, fine, friable, iron-cemented, red-brown	17	230
			Shale, silty, and red-brown, friable sandstone	30	260
			Shale, silty, and brown, friable sandstone	70	330
		Kiowa Shale
			Shale, silty, brownish-gray; interbedded hard and soft streaks	110	440
		Cheyenne Sandstone
			Sandstone, friable, whitish-gray; interbedded with gray-blue shale	60	500
			Shale, very hard, black	3	503
			Sandstone, friable, thin bedded; with gray-blue shale	34	537
Triassic
	Upper Triassic
		Dockum Group
			Sandstone, fine, red	8+	545

27-39-18bbb--Sample log of test hole drilled in NW NW NW sec. 18, T. 27 S., R. 39 W., 10 feet south and 50 feet east of NW cor. sec. 18, October 26, 1959, altitude of land surface, 3,187 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Silt, gray-brown, and clayey silt	10	10
			Silt, dark-brown	18	28
			Sand, fine to coarse, and fine to medium gravel	8	36
			Silt, gray	4	40
			Sand, fine to coarse, and gray silt	10	50
			Silt, clayey, gray; with thin hard streaks	10	60
			Sand, fine, brown, and gray silt	10	70
			Silt, clayey, fossiliferous, blue to dark-gray	20	90
			Silt, sandy, fossiliferous, gray	10	100
	Pliocene
		Ogallala Formation
			Clay, gray and brown	10	110
			Sand, fine to coarse, silty	30	140
			Sand, fine to coarse, silty, and fine gravel	25	165
			Caliche, soft	1	166
			Sand, fine to coarse, silty, and fine gravel	11	177
			Sand, fine to coarse, fine to coarse gravel, and yellow to white clay; predominantly brown sandstone fragments	13+	190

27-40-17dcc--Sample log of test hole drilled in SW SW SE sec. 17, T. 27 S., R. 40 W., 45 feet north and 30 feet east of SW cor. sec. 17; June 22, 1960; altitude of land surface, 3,267 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Silt, sandy, tan; with caliche streaks	45	47
			Silt, sandy, brown	18	65
			Sand, fine to coarse, brown; contains a little fine gravel	12	77
			Clay, sandy, tan	10	87
			Volcanic ash, unweathered, white	3	90
			Silt, sandy, brown	15	105
			Sand, fine to medium, brown	5	110
			Sand, fine to coarse, brown; contains silt streaks and a little fine gravel	22	132
	Pliocene
		Ogallala Formation
			Silt, sandy, tan	15	147
			Sand, fine to coarse, brown	5	152
			Silt, sandy, brown	26	178
			Sand, fine to medium. brown	14	192
			Silt, brown; with sand streaks and caliche	52	244
			Clay, hard, gray and brown streaks	12	256
			Clay, pink; contains a little ironstone	2	258
			Clay, hard, brown and gray; contains a few sandstone and ironstone fragments	42	300
			Clay, silty, yellow-tan	10	310
Cretaceous
	Lower (?) Cretaceous
		Dakota (?) Formation
			Shale, sandy, green	15	325
			Shale, dark-gray; with a few hard sandy streaks	25+	350

27-41-1bbb--Sample log of test hole drilled in NW NW NW sec. 1, T. 27 S., R. 41 W., in NW cor. sec. 1; 1940; altitude of land surface, 3,265 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Silt, fine sandy, tan to gray	25	25
			Silt, fine sandy and clayey, gray	11	36
			Sand, gray to brown, and gravel	8	44
			Silt, sandy, light-brown	26	70
			Sand, medium to coarse, tan, and fine to coarse gravel	10	80
			Silt, tan, sand, and gravel	10	90
			Sand, fine to coarse, tan, and fine to medium gravel	11	101
			Silt, light-gray and brown, and clay	9	110
			Silt and clay, blue-gray	10	120
			Silt, fine sandy, brown	4	124
			Sand, fine to coarse, tan	16	140
			Sand, fine to coarse, tan, and fine to coarse gravel	10	150
			Sand, coarse, tan, and fine to coarse gravel	19	169
	Pliocene
		Ogallala Formation
			Silt, sandy, brown	16	185
			Sand, coarse, tan, and fine to coarse gravel	18	203
			Silt and clay, sandy, brown	14	217
			Sand, medium to coarse, tan, and fine to medium gravel	9	226
Cretaceous
	Lower Cretaceous
		Dakota Formation [Lower (?) Cretaceous]
			Sandstone, yellow-brown and red-brown	4	230
			Shale, soft, light-gray and blue	2.5	232.5
			Sandstone, light-brown, yellow- and red-brown	5	237.5
			Sandstone, red-brown, and alternating yellow and gray shale	6.5	244
			Shale, yellow, gray, and blue	6	250
			Sandstone, soft, yellow to light-brown	20	270
			Shale, sandy, gray-green and yellow	19	289
		Kiowa Shale
			Shale, clayey, blue-gray	16	305
			Shale, sandy, hard, blue-gray	10	315
			Shale, clayey, soft, blue-gray	15	330
			Shale, hard, blue-gray	26	356
		Cheyenne Sandstone
			Sandstone, fine to medium, gray	14	370
			Shale, clayey, blue-gray, and fine, hard sandstone	24	394
			Sandstone, soft, light-gray	10	404
			Sandstone, hard, buff	8	412
Triassic
	Upper Triassic
		Dockum Group
			Shale, red and light-gray	5	417
			Sandstone, buff	2	419
			Shale, red, and yellow-brown, soft sandstone	5	424
			Shale, red and light-gray	3	427
			Sandstone, hard, light-brown to buff	14	441
			Shale, red-brown and light-gray	22	463
			Sandstone, light-gray to buff	30	493
			Siltstone, hard, red	5	498
			Shale, gritty, light-gray to white	6.5	504.5
			Sandstone, light-brown to buff	5.5	510
			Shale, silty, red-brown, light-gray, and gray-green	13	523
			Sandstone, buff to gray-brown	65	588
			Sandstone, hard, fine, buff, blue-green, and gray	25	613
			Shale, silty, light-gray and blue-gray	4+	617

27-41-13bbb--Sample log of test hole drilled in NW NW NW sec. 13, T. 27 S., R. 41 W.; altitude of land surface, 3,274 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Road fill	4	4
			Soil, silty, brown to black	4	8
			Silt, limy, gray	5	13
			Sand, medium, tan	6	19
			Silt, limy, gray	8	27
			Silt, sandy, brown, and fine sand	12	39
			Sand, fine to coarse, tan, and fine to coarse gravel	3.5	42.5
			Silt, sandy, light-brown	7.5	50
			Sand, fine to coarse, tan	7	57
			Clay, silty, brown and gray	9	66
			Sand and gravel, poorly sorted, tan	42.5	108.5
			Silt, sandy, brown to gray	24.5	133
			Sand, medium to coarse, tan, and fine gravel	1.5	134.5
			Silt, sandy, tan, and some caliche	35.5	170
			Sand, medium to coarse, tan, and fine to coarse angular gravel	20	190
	Pliocene
		Ogallala Formation
			Sand and gravel and silt in alternating beds	10	200
			Silt, sandy, limy, brown, and caliche	5	205
			Sand, medium to coarse, and fine to coarse gravel; poorly sorted	9	214
			Silt, sandy, tan, and some caliche	6	220
			Gravel, fine to coarse, poorly sorted; contains abundant pebbles of Dakota sandstone	8	228
Cretaceous
	Lower (?) Cretaceous
		Dakota Formation
			Shale, sandy and silty, yellow to brown	5	233
			Shale, sandy, yellow, and red-brown very fine sandstone	7+	240

27-42-24cc--Sample log of test hole drilled in SW SW sec. 24, T. 27 S., R. 42 W., SW cor. sec. 24; June 23, 1960; altitude of land surface, 3,410 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Silt, brown	26	28
			Sand, medium to coarse; tan silt streaks; some fine gravel	26	54
			Silt, brown; caliche streaks	8	62
			Sand, medium to coarse, some brown silt	23	85
			Silt, tan	31	116
			Silt, sandy, tan	4	120
			Sand, fine; some tan silt	15	135
			Silt, sandy, tan	25	160
			Sand, fine to medium, brown	21	181
	Pliocene
		Ogallala Formation
			Silt, brown	5	186
			Sand, fine, brown	15	201
			Sand, fine, brown, and brown clay streaks	9	210
			Sand, fine, brown	15	225
			Silt, brown	1	226
			Sand, fine to medium, brown	14	240
			Sand, medium to coarse	11	251
			Silt, sandy, brown	4	255
			Silt, brown, and tan streaks	15+	270

27-43-1ccc--Sample log of test hole drilled in SW SW sec. 1, T. 27 S., R. 43 W., 110 feet north and 10 feet east of SW cor. sec. 1; June 24, 1960; altitude of land surface, 3,521 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Silt, brown	12	14
			Caliche, soft	4	18
			Silt, brown	30	48
			Sand, fine, brown	8	56
			Silt, brown	1	57
			Sand, fine to coarse; some fine gravel	4	61
			Silt, brown; some caliche	29	90
			Silt, brown, sandy	4	94
			Sand, fine to coarse; some gravel	4	98
			Silt, brown	20	118
			Silt, brown; streaks of sand	12	130
			Sand, fine	6	136
	Pliocene
		Ogallala Formation
			Silt, brown	26	162
			Silt, gray	5	167
			Silt, tan	14	181
			Silt, brown	14	195
			Sand, medium	6	201
			Silt, brown	8	209
			Silt, brown; streaks of yellow silt and sand	31	340
			Silt, brown; streaks of tan silt	12	252
			Sand, fine to medium	20	272
			Sand, fine to medium; streaks of silt	5	277
			Silt, brown; streaks of tan silt	21	298
			Sand, fine to coarse	37	335
			Silt, brown to tan, sandy	33	368
			Silt, brown to tan	10	378
			Clay, blue	2+	380

27-43-23aaa--Sample log of test hole drilled in NE NE NE sec. 23, T. 27 S., R. 43 W., NE cor. sec. 23; 1939; altitude of land surface, 3,527 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Road fill	2	2
			Silt, limy, light-brown (loess)	2	4
			Sand, fine, brown; contains caliche fragments	5	9
			Silt, sandy, brown, contains a little caliche	14	23
			Sand, fine, tan, and coarse, poorly sorted gravel	16	39
			Silt, hard, limy, sandy, creamy-brown	3	42
			Sand, medium to coarse, tan, and fine to medium gravel	3	45
			Gravel, very coarse, angular, tan	9	54
			Silt, light-brown	6	60
			Sand, medium to coarse, tan and fine angular gravel	7	67
			Silt, sandy, brown	11	78
			Sand, fine to coarse, tan, and fine gravel	10	88
			Silt, sandy, brown to gray-green	12	100
			Silt, sandy, tan; contains a little semiconsolidated sand and a few gastropod shell fragments	9	109
			Sand, medium to coarse, tan, and fine to medium angular gravel	6.5	115.5
	Pliocene
		Ogallala Formation
			Silt, sandy, hard, brown, and caliche	8.5	124
			Sand, medium to coarse, tan, and fine to medium angular gravel	5	129
			Silt, sandy, brown, and caliche; contains a few hard limestone fragments	4	133
			Sand, fine to coarse, tan, and fine to coarse gravel	23	156
			Silt, sandy, red-brown	2	158
			Sand, fine to coarse, red-brown, and clay	12	170
			Sand, fine to coarse, tan	5	175
			Silt, clayey, sandy, brown and gray, and caliche	7	182
			Clay, soft, red-buff; contains dark-brown iron nodules	2	184
			Clay, soft, weathered, yellow-brown, and red	6	190
			Clay, soft, varicolored; and light-gray sand	10+	200

28-39-2ccc--Sample log of test hole drilled in SW SW sec. 29 T. 28 S.9 R. 39 W., near southwest cor. sec. 2; 1939; altitude of land surface, 3,152 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil,, tan	2	2
			Soil, gray; limy strips	2	4
			Silt, sandy, light-brown	10	14
			Silt, sandy, brown, and red-brown loose sand	10	24
			Silt, sandy, light gray, brown, and white	26	50
			Sand, fine to medium, tan	5	55
			Silt, sandy, limy, brown	17	72
			Sand, fine to coarse, tan	8	80
			Clay and volcanic ash, soft, white	14	94
			Silt, light-brown and gray; some caliche	23	117
			Silt, sandy, limy, brown and gray	41	158
			Silt, sandy, light-brown; scattered sand, gravel, and caliche	22	180
			Clay, silty, sticky, tan	28	208
			Silt, sandy, tan, and sand lenses	16	224
			Silt, sandy, tan	10	234
			Silt, limy, tan, light-gray and white	5	239
			Gravel, medium to very coarse	27	266
	Pliocene
		Ogallala Formation
			Clay, silty, sticky, tan	9	275
			Sand and silt, limy, gray, interbedded	3	278
			Sand, fine to coarse, tan	3	281
			Silt, sandy, limy, light-brown	5	286
			Sand, fine, tan and gray	5	291
			Silt, sandy, limy, light-brown	4	295
			Sand, fine to coarse, tan	6	301
			Silt, sandy, limy, light-brown and gray	4	305
			Sand, fine to coarse, and caliche	6	311
			Caliche, hard	5	316
			Sand, loose, and caliche	8	324
			Silt, gritty, limy, light-gray to white-tan	6	330
			Clay and sandstone fragments	3	333
			Clay, sandy, yellow and gray; drilled hard	17+	350

28-39-2dc--Sample log of test hole drilled by Juel Water Well Drilling Co. for M. C. Romersi in SW SE sec. 2, T. 28 S., R. 39 W., 0.1 mile north and 0.4 mile west of SE cor. sec. 2; March 1959; altitude of land surface, 3,143 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			No sample or log	100	100
			Silt, sandy, brown, tan, and thin, fine sand strips	63	163
			Clay and silt strips, brown	15	178
			Sand, very fine, and silt strips	34	212
			Sand, fine	13	225
			Gravel, medium to very coarse	25	250
	Pliocene
		Ogallala Formation
			Clay and caliche	6	256
			Sand, medium to coarse	14	270
			Silt, sandy, brown	6	276
			Clay, brown	4	280
			Sand, medium, brown	7	287
			Clay	3	290
			Sand, medium, brown	10	300
			Sand, gravel, and caliche	8	308
			Sand, medium to coarse	14	322
			Sand, medium, and gravel	16	338
			Clay and caliche	10	343
Cretaceous
	Lower Cretaceous
		Dakota (?) Formation [Lower (?) Cretaceous]
			Sandstone, yellow and gray strips	23	371
		Kiowa Shale
			Shale, blue	49	420
			Shale and sandstone	3	423
			Shale, blue and brown	19	442
			Shale, blue, and sandstone strips	25	467
			Shale, blue	16	483
		Cheyenne Sandstone
			Sandstone; very few thin shale strips	97+	580

28-39-13cbb--Sample log of test hole drilled in NW SW sec. 13, T. 28 S., R. 39 W., 30 feet south and 30 feet east of W 1/4 cor. sec. 13; June 1960; altitude of land surface, 3,143 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil, gray	10	10
			Sand, fine, silty, brown	10	20
			Sand, fine, brown	20	40
			Sand, medium, coarse	10	50
			Sand, fine, silty, brown	20	70
			Sand, fine to medium	10	80
			Sand, fine to coarse, and clay	20	100
			Clay, brown	10	110
			Silt, brown, and clay strips	10	120
			Sand, fine, brown	15	135
			Clay, brown, and fine sand	25	160
			Sand, fine to coarse, brown	15	175
			Clay, light-gray and brown	20	195
			Sand, fine, brown	5	200
			Clay, gray-blue and brown	25	225
			Clay, gray; contains fossils	33	258
			Sand, coarse	12	270
			Sand, coarse, and gravel strips	30	300
	Pliocene
		Ogallala Formation
			Sand, coarse, and clay strips	50	350
			Clay, yellow, and fine sand strips	15+	365

28-39-19aaa--Sample log of test hole drilled in NE NE sec. 19, T. 28 S., R. 39 W., 40 feet south and 30 feet west of NE cor. sec. 19; 1959; altitude of land surface, 3,198 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil, gray	5	5
			Silt, brown	5	10
			Silt, brown	10	20
			Sand, fine, brown	15	35
			Clay, and silt, brown	13	48
			Sand, fine, brown	12	60
			Sand, coarse, and fine gravel	14	74
			Clay, brown	12	86
			Sand, fine, and brown clay	5	91
			Clay, gray	9	100
			Clay, brown	15	115
			Sand, coarse	20	135
			Clay, brown, and fine sand strips	15	150
			Sand, fine to coarse	10	160
			Sand, coarse	14	174
			Clay, gray	2	176
			Clay, brown, and fine sand	14	190
			Sand, fine to coarse	10	200
			Sand, medium, brown, and clay strips	35	235
			Sand, medium	15	250
	Pliocene
		Ogallala Formation
			Clay, brown, and fine sand strips	40	290
			Sand, coarse	10	300
			Clay, brown	10	310
			Sand, fine, brown, and clay strips	10	320
			Sand, coarse, and fine gravel	12	332
			Clay and sand strips	13	350
			Sand, coarse, brown	10	360
			Clay, brown-tan; very fine sand strips	5	365
			Clay, fine sand, and caliche strips	15	380
			Clay, brown, and fine sand strips	20+	400

28-40-21dc2--Sample log of test hole drilled by Juel Water Well Drilling Co. for J. A. Ramsey in SW SE sec. 21, T. 28 S., R. 40 W., about 0.5 mile west of SE cor. sec. 21; July 28, 1959; altitude of land surface, 3,280 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Topsoil and clay	18	18
			Sand	42	60
			Silt, tan to yellow-brown	50	110
			Silt, tan, and caliche	10	120
			Sand, fine to coarse, silty, brown, and fine gravel	55	175
			Clay, green-tan	5	180
			Silt, tan-brown	20	200
			Silt, brown	10	210
			Silt, sandy, brown-tan	10	220
			Sand, fine to coarse, silty, tan, and fine gravel	30	250
	Pliocene
		Ogallala Formation
			Silt, very sandy, tan	30+	300

28-41-9ccc--Sample log of test hole drilled in SW SW SW sec. 9, T. 28 S., R. 41 W., 30 feet north and 30 feet east of SW cor. sec. 9; June 1960; altitude of land surface, 3,376 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Sand, fine silty, brown	3	5
			Clay, silty, gray	4	9
			Clay, sandy, gray	3	12
			Clay, gray	3	15
			Clay, sandy, yellow-brown	6	21
			Clay, hard, yellow-brown	8	29
			Clay, yellow-brown; contains sandy clay layers	8	37
			Clay, silty, red-brown; contains red-brown sandy clay layers	18	55
			Sand, fine to medium; contains a few thin, brown, sandy clay layers	19	74
			Sand, medium to coarse	10	84
			Sand, medium to coarse, and fine gravel	3	87
			Clay, silty, olive-tan	14	101
			Clay and silt, olive-tan	17	118
			Sand, medium to coarse, and fine gravel; contains very few thin brown clay layers	60	172
			Clay, hard, brown	4	182
			Sand, fine to coarse, and fine gravel; contains thin, brown, silty clay layers	42	224
	Pliocene
		Ogallala Formation
			Clay, hard, silty, and sandy clay layers	11	235
			Sand, fine to medium, and brown clay layers	5	240
			Sand, fine to coarse, and thin brown clay layers	12	252
			Clay, brown	2	254
			Sand, fine to coarse, and brown silty clay layers	5	259
			Clay, brown	2	261
			Sand, medium to coarse, and fine gravel; contains thin, brown, silty clay layers	94	355
			Clay, brown, and thin sand layers	13	368
Cretaceous
	Lower Cretaceous
		Kiowa (?) Shale
			Shale, blue	2+	370

28-41-14aad--Sample log of test hole drilled in SE NE NE sec. 14, T. 28 S., R. 41 W., 698 feet south and 104 feet west of NE cor. sec. 14; June 21, 1960; altitude of land surface, 3,339 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil, silty, sandy, brown	2	2
			Sand, fine, brown	6	8
			Clay, tan	1	9
			Sand, fine to medium, brown	18	27
			Sand, coarse to medium, and fine gravel	10	37
			Clay, brown	2	39
			Sand, fine to medium	6	45
			Clay, brown, and caliche	30	75
			Sand, fine, brown	9	84
			Clay, brown	2	86
			Sand, fine, silty; contains brown clay layers	11	97
			Sand, fine to medium	32	129
			Clay, buff-tan	1	130
			Sand, fine to medium	8	133
			Sand, fine to medium; contains thin brown clay strips	17	155
			Sand, fine to coarse, and fine gravel	12	167
			Clay, buff-tan	3	170
			Sand, fine to coarse	17	187
			Clay, buff-tan	5	192
			Sand, fine to coarse	2	194
	Pliocene
		Ogallala Formation
			Clay, brown	6	200
			Sand, fine to coarse	46	246
			Clay, brown	2	248
			Sand, medium to coarse, and fine gravel; contains weathered ironstone and sandstone particles	34	282
			Clay	1	283
			Sand, medium to coarse, and fine gravel; contains weathered ironstone and sandstone fragments	11+	294

28-41-35aaa--Sample log of test hole drilled in NE NE NE sec. 35, T. 28 S., R. 41 W., near NE cor. sec. 35; 1939; altitude of land surface, 3,347 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Road fill	2	2
			Silt, sandy, gray	5	7
			Silt, sandy, tan to brown, and caliche	33	40
			Sand, medium to coarse	16.5	56.5
			Silt, sandy, brown, and some caliche	5.5	62
			Sand, fine to coarse, tan	3	65
			Silt, brown; contains thin sand lenses and caliche	5	70
			Sand, fine to coarse, and fine gravel; contains thin, tan silt beds	58	128
			Silt, sandy, brown	18	146
			Silt, limy, gray; contains caliche	9	155
			Sand, fine to very coarse	6	161
			Silt, sandy, brown and gray	9	170
			Sand, fine to very coarse, and fine gravel	28	198
			Silt, sandy, yellow	7	205
			Sand, medium to coarse, and fine to medium gravel	42	247
			Silt, sandy, yellow-tan	7	254
			Gravel, medium to coarse, and coarse sand	62	316
	Pliocene
		Ogallala Formation
			Silt, sandy, yellow-brown and gray	27	343
			Sand, fine to very coarse, and fine gravel	7	350
			Silt, sandy, yellow-brown	13	363
			Sand, medium to coarse, and fine gravel	19	382
			Silt, sandy, tan	16	398
			Sand, medium to very coarse	2	400
			Silt, sandy, brown	17	417
			Sand, fine, brown, and yellow-brown clay	21	438
Cretaceous
	Lower (?) Cretaceous
		Kiowa (?) Shale
			Shale, silty, dark-gray to blue-gray	2+	4-10

28-42-2ddd--Sample log of test hole drilled in SE SE SE sec. 2, T. 28 S., R. 42 W., near SE cor. sec. 2; 1939; altitude of land surface, 3,434 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil, loamy, dark-brown	1.5	1.5
			Silt, soft, limy, buff	7.5	9
			Silt, limy, light-brown to gray	9	18
			Silt, limy, light-gray to creamy-white	4	22
			Silt, hard, sandy, tan	9	31
			Silt, sandy, red-brown	9	40
			Silt, sandy; contains caliche	5	45
			Sand, fine to coarse, and fine gravel	2	47
			Silt, sandy, red-brown to tan	25	72
			Sand, fine to medium	4	76
			Silt, sandy, tan	5	81
			Sand, medium to coarse, and fine gravel	10	91
			Silt, sandy, brown; contains caliche	11	102
			Sand, fine to coarse, and fine gravel	31	133
			Silt, light-gray	17	150
			Sand, fine to coarse, and gravel	10	160
			Silt, hard, brown	10	170
			Silt, sandy, brown	15	185
			Sand, fine to coarse, and fine gravel	5	190
	Pliocene
		Ogallala Formation
			Silt, sandy, brown	10	200
			Clay, silty, light-brown	16	216
			Sand, fine to medium	1.5	217.5
			Clay, silty, light-brown	8.5	226
			Silt, sandy, limy, light-brown	21	247
			Sand, fine to coarse, tan	3	250
			Silt, sandy, brown	5	25-3
			Sand, fine to medium, and tan clay	5	260
			Sand, fine to medium, and fine gravel; contains sandy clay	10	270
			Sand, gravel and silt, interbedded	27	297
			Sand, fine to medium, brown	9	306
			Clay, silty, yellow-brown	12	318
Cretaceous
	Lower Cretaceous
		Kiowa (?) Shale
			Shale, soft, clayey, dark-gray	8	326
			Sandstone, soft, friable, red-brown	1	327
			Shale, soft, clayey, dark-gray to black	3+	330

28-43-13bbb--Sample log of test hole drilled in NW NW NW sec. 13, T. 28 S., R. 43 W., 5 feet south and 57 feet east of NW cor. sec. 13; June 27, 1960; altitude of land surface, 3,593 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Silt, grayish-brown	10	10
			Silt, sandy, brown	10	20
			Silt, sandy, tan; caliche-cemented	10	30
			Silt, brown	13	43
			Sand, medium to coarse and fine gravel	8	51
			Silt, brown and tan; thin caliche -cemented layers	29	80
			Silt, sandy, brown; some thin, brown clay layers	24	104
			Sand, medium to coarse	26	130
			Gravel, fine, and coarse to very coarse sand	15	145
	Pliocene
		Ogallala Formation
			Silt, tan	7	152
			Sand, fine to coarse, and fine gravel	8	160
			Sand, medium to very coarse, and fine gravel	31	191
Cretaceous
	Lower (?) Cretaceous
		Dakota Formation
			Shale, silty, light-gray	23+	214

28-43-16ddd--Sample log of test hole drilled in SE SE SE sec. 16, T. 28 S., R. 43 W., near SE cor. sec. 16; altitude of land surface, 3,643 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Silt, grayish-brown	10	10
			Silt, tan-brown	4	14
			Silt, sandy, tan-brown	11	25
			Silt, sandy, buff-tan; caliche-cemented	10	35
			Silt; caliche-cemented, sandy, tan-brown; contains medium-sized quartz grains	4	9
			Clay, brown	8	47
			Silt, very sandy, brown	4	51
			Silt, very sandy, brown; caliche-cemented	9	60
			Silt, very sandy, brown	7	67
			Sand, medium to very coarse, and fine gravel	4	71
			Silt, sandy, brown	5	76
			Silt, very sandy, brown	9	85
			Silt, sandy, brown	11	96
			Clay, brown	5	101
			Sand, medium to coarse	19	120
			Sand, medium to very coarse	20	140
			Sand, medium to very coarse; fine to medium gravel	16	156
	Pliocene
		Ogallala Formation
			Clay, brown	4	160
			Silt, sandy, brown	17	177
			Sand, medium to very coarse; fine gravel	32	209
Cretaceous
	Lower (?) Cretaceous
		Dakota Formation
			Sandstone, very fine-grained; limonite-cemented	11+	220

29-39-24dda--Sample log of test hole drilled in SE SE sec. 24, T. 29 S., R. 39 W., 700 feet north and 300 feet west of SE cor. sec. 24; July 12, 1960; altitude of land surface, 3,154 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Sand, fine, brown	5	7
			Clay, tan-gray	6	13
			Clay, silty, brown; with caliche streaks	9	22
			Sand, fine to medium; with brown, silty clay and caliche streaks	9	31
			Sand, medium to coarse; with fine gravel and thin, green-gray clay and caliche streaks	7	38
			Clay, silty, tan	5	43
			Caliche and fine sand streaks	10	53
			Silt, clayey, tan-red-gray; with white very fine sand	5	58
			Clay, silty; with gray-green clay and fine sand	12	70
			Clay, tan; with sandy clay and light-brown sand streaks	13	83
			Sand, fine, brown-red; with tan clay streaks	21	104
			Sand, fine, brown; with a few thin clay streaks	9	113
			Sand, fine to medium, brown; with thin sandy clay streaks	4	117
			Clay, tan and gray	11	128
			Clay, tan; with brown, fine sand streaks	12	140
			Sand, fine to medium, brown	3	143
			Sand, medium to coarse; with some fine gravel	15	158
			Clay, brown and tan streaks	15	173
			Sand, fine to medium, brown	3	176
			Clay, tan-brown	9	185
			Sand, medium, brown; with clay streaks	6	191
			Sand, medium to coarse, brown	8	199
			Sand, medium, sandy clay and clay streaks	7	206
			Sand, fine to coarse; with few clay streaks	19	225
			Sand, coarse, brown	8	233
			Sand, medium to coarse and sandy clay streaks	9	242
			Clay, hard, brown-tan and gray; with some sandy clay	5	247
			Sand, fine, brown, and sandy clay streaks	3	250
			Clay, hard, tan and gray streaks,	6	256
			Sand, fine to medium, brown	7	263
			Sand, fine, brown, and clay streaks	11	274
			Sand, fine, brown	5	279
			Clay, brown	2	281
			Sand, fine to medium, clay and sandy clay strips	6	287
			Sand, medium to coarse, brown	7	294
			Clay, sandy clay and fine sand streaks	3	297
			Sand, coarse, brown; with very thin clay streaks	11	308
	Pliocene
		Ogallala Formation
			Clay, hard, brown	2	310
			Sand, medium to coarse, brown, and thin clay streaks	8	318
			Sand, coarse; with some fine gravel	11	329
			Sand, fine to medium, clay and sandy clay streaks (about 50 percent sand)	16	345
			Clay, brown, gray, and tan streaks	11	356
			Sand, medium, and clay streaks (about 50 percent sand)	6	362
			Clay, brown, red, gray, and tan streaks	5	367
			Sand, medium, brown; with clay streaks (about 50 percent sand)	5	372
			Clay, hard, white and tan streaks; some sandy clay streaks	8+	380

29-39-27aaa--Sample log of test hole drilled in NE NE sec. 27, T. 29 S., R. 39 W., 100 feet south and 35 feet west of NE cor. sec. 27; May 1960; altitude of land surface, 3,174 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Topsoil	2	2
			Clay, silt, and sandy clay	32	34
			Clay and sandy clay	10	44
			Clay, sandy, brown, and caliche	8	52
			Clay, sandy, brown	12	64
			Sand, medium to coarse	8	72
			Sand, fine to medium, and clay streaks	10	82
			Sand, medium to coarse, and thin clay streaks	9	91
			Clay, sandy, brown	4	95
			Sand, fine to coarse, brown	11	106
			Clay, brown, and sandy clay	11	117
			Sand, fine to medium; and thin, sandy clay streaks	25	142
			Sand, very fine; and sandy clay streaks	13	155
			Clay, fine sand, and caliche streaks	7	162
			Clay, sandy, and fine sand streaks	7	169
			Sand, fine to medium; and thin, sandy clay streaks	31	200
			Sand, fine, brown	16	216
			Sand, fine, brown, and sandy clay streaks	20	236
			Sand, medium to coarse; and a few thin clay streaks	20	256
			Sand, medium to coarse, and fine gravel	11	267
			Sand, medium to coarse; fine gravel; and a few thin clay streaks	15	282
	Pliocene
		Ogallala Formation
			Sand, coarse; clay; and a few thin caliche streaks; drilled hard	12	294
			Sand, fine to medium, brown, and thin clay streaks	26	320
			Sand, fine to medium	16	336
			Sand, fine; and clay streaks	19	355
			Sand, fine to coarse; and thin clay and silt streaks	23	378
			Sand, coarse; and thin clay streaks	29	407
			Sand, fine, cemented; and hard clay streaks	3+	410

29-39-30bb--Sample log of test hole drilled in NW NW sec. 30, T. 29 S.. R. 39 W., 25 feet south and 95 feet east of NW cor. sec. 30; October 1959; altitude of land surface, 3,228 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil, gray	5	5
			Silt, brown, and caliche	23	28
			Sand, fine, red-brown	4	32
			Clay, sandy, red	13	45
			Clay, sandy, pink; and caliche	15	60
			Clay, sandy, and thin fine sand streaks	20	80
			Sand, fine	10	90
			Sand, coarse; and fine gravel	40	130
			Sand and clay streaks; with thin caliche streaks	10	140
			Sand and fine gravel	48	186
			Clay, red-brown	7	195
			Sand, fine to coarse, and gravel	74	269
	Pliocene
		Ogallala Formation
			Clay, fine sand, and caliche	11	280
			Sand, coarse	30	310
			Sand, coarse, and fine gravel	79	389
			Sand, fine; sandy clay; and caliche	13	402
			Sand, fine to medium	37	439
			Sand, coarse; and some fine gravel	11	450
			Clay, hard, yellow, and fine sand	10	460
			Sand, fine, cemented	10+	470

29-40-21ddd--Sample log of test hole drilled in SE SE SE sec. 21, T. 29 S., R. 40 W., 160 feet north and 30 feet west of SE cor. sec. 21; altitude of land surface, 3,272 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Topsoil	2	2
			Silt, tan; and very fine sand; contains thin layers of caliche	38	40
			Sand, very fine to medium; and tan silt; contains thin layers of caliche	22	62
			Silt, sandy, brown	25	87
			Silt, sandy, brown; contains thin caliche layers	6	93
			Sand, fine to coarse; contains thin, brown, clayey silt layers	23	116
			Sand, medium to very coarse; and fine to medium gravel	36	152
			Sand, fine to medium; contains thin, brown, clayey silt layers	21	173
			Sand, medium to coarse; and fine gravel; contains brown silt	16	189
			Sand, medium to coarse; and fine gravel; contains brown clayey silt layers	21	210
			Clay, soft, brown; and brown sandy clay; interbedded brown silty sand layers	18	228
			Sand, medium to very coarse; and fine to medium gravel; drilled loose	14	242
			Silt, sandy, brown	3	245
			Sand, medium to coarse, silty, brown	8	253
			Sand, medium to coarse; contains thin, brown, clayey silt layers	7	260
			Clay, hard, silty, brown	3	263
			Sand, fine to medium, silty, brown	12	275
			Sand, medium to very coarse; and fine to medium gravel	16	291
	Pliocene
		Ogallala Formation
			Clay, hard, silty, yellow-brown; contains fine sand layers	8	298
			Clay, hard, silty, yellow-brown	24	322
			Sand, fine to medium; interbedded yellow-brown, hard silty clay layers	20	342
			Clay, hard, silty, yellow-brown	5	347
			Sand, fine to coarse; interbedded yellow-brown silty clay layers	11	358
			Sand, medium to coarse, and fine gravel; contains thin, yellow-brown, clayey silt strips	14	372
			Sand, medium to very coarse, and fine gravel; contains thin yellow-brown clay strips	12	384
			Sand, medium to very coarse, and fine gravel	3	387
			Sand, medium to very coarse, and fine gravel; contains yellow-brown silty clay layers	23+	410

29-41-28bbb--Sample log of test hole drilled in NW NW sec. 28, T. 29 S., R. 41 W., 20 feet south and 50 feet east of NW cor. sec. 28; June 28, 1960; altitude of land surface, 3,380 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Sand, fine to very coarse; and fine gravel; drilled loose; contains rounded caliche pebbles	22	32
			Silt, red-brown; interbedded with silty gray clay and fine sand layers	30	62
			Sand, fine to coarse, silty, tan; contains fine to coarse gravel layers	15	77
			Caliche, hard, white	4	81
			Sand, fine to coarse, silty, tan	5	86
			Silt, liglit-brown; contains caliche layer	4	90
			Clay, silty, yellow-brown	12	102
			Sand, fine to coarse, silty; and fine to coarse gravel	26	128
	Pliocene
		Ogallala Formation
			Silt, brown	3	131
			Sand, fine to medium, silty, yellow-tan	9	140
			Sand, fine to very coarse; and fine gravel	20	160
			Sand, fine to very coarse; and fine to coarse gravel; contains weathered pebbles of Dakota ironstone	15	175
			Clay, silty, yellow-brown	10	185
			Sand, fine to coarse; and fine to medium gravel; contains rounded pebbles of Dakota ironstone	20	205
			Sand, very fine, and silt; contains gray clay strips and weathered fragments of Dakota ironstone	41	246
Cretaceous
	Lower Cretaceous
		Kiowa Shale
			Shale, silty, dark-gray to black	14+	260

29-42-24cc--Sample log of test hole drilled by Dreiling Drilling Co. for Mr. Wilcox in SW SW sec. 24, T. 29 S., R. 42 W., 400 feet north and about 300 feet east of SW cor. sec. 24; November 9. 1959; altitude of land surface, 3,484 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Topsoil	2	2
			Sand, fine, brown	8	10
			Sand, fine, brown; with sandy clay streaks	5	15
			Sand, fine, brown	5	20
			Sand, fine, brown; and caliche	10	30
			Sand, fine brown; with a little clay	10	40
			Sand, fine to medium, brown	10	50
			Sand, medium, brown	18	68
			Sand, medium coarse, brown	20	88
			Sand, coarse, brown	11	99
			Sand, coarse, brown, and fine gravel streaks	38	137
	Pliocene
		Ogallala Formation
			Clay, sandy, yellow	3	140
			Sand, fine to coarse, black, brown and white streaks; with sticky yellow clay streaks	19	159
			Sand, fine to coarse; interbedded black, brown, white, and gray streaks	15	174
			Sand, fine, iron-stained, brown	51	225
			Clay, soft, blue	10	235
			Sand, fine to coarse, brown, and gravel; predominantly fine iron-cemented sandstone particles	25	260
Cretaceous
	Lower Cretaceous
		Dakota Formation [Lower (?) Cretaceous]
			Sandstone, fine; and blue shale streaks	12	272
			Sandstone, fine, iron-cemented, brown	25	297
		Kiowa Shale
			Shale, sticky, blue and brown streaks; with thin fine sandstone streaks	13	310
			Shale, hard, blue; with very thin fine sandstone streaks	35	345
			Shale, sticky, hard, blue	15	360
		Cheyenne Sandstone
			Shale, blue, and fine sandstone streaks	5	365
			Sandstone, fine, friable, blue	45	410
Triassic
	Upper Triassic
		Dockum Group
			Sandstone, fine, red and pink	35	470
			Shale, soft, red	3	473
			Sandstone, fine, hard, red and tan streaks	5	478
			Sandstone, fine, friable, pink and buff	37+	515

29-43-23ccc--Sample log of test hole augered in SW SW SW sec. 23, T. 29 S., R. 43 W., 15 feet north and 15 feet east of SW cor. sec. 23; November 15, 1960; altitude of land surface, 3,588 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene and Pliocene
			Silt, dark brown, and fine to coarse sand	5	5
			Silt, sandy, light-brown	5	10
			Silt, sandy, clayey, light-red, and medium to very coarse sand	10	20
			Sand, very coarse to fine; and light brown silt	5	25
			Sand, very coarse to fine; and buff-brown silt	5	30
			Sand, very coarse to fine; and light-brown silt	5	35
			Caliche, sandy, silty, cream-white	5+	40

30-39-2bbb--Sample log of test hole drilled in NW NW NW sec. 2, T. 30 S., R. 39 W., near NW cor. sec. 2; 1939; altitude of land surface, 3,188 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Soil, loamy, gray	4	4
			Silt, sandy, soft, light-brown	6	10
			Silt, sandy, red-tan to light-brown	10	20
			Silt, hard, light-brown	18.5	38.5
			Silt, gritty, limy, tan and white; and caliche	11.5	50
			Silt, gray-tan	10	60
			Sand, fine; and tan-brown to yellow-brown silt	4	64
			Silt, limy, brown and gray	6	70
			Silt, sandy, light-brown to light-gray	15	85
			Sand and gravel, poorly sorted, tan	2	87
			Silt, sandy, brown and yellow-brown	7	94
			Sand, fine to coarse, tan	8	102
			Silt, sandy, tan	4.5	106.5
			Sand, coarse; and fine to coarse gravel	3.5	110
			Silt, sandy, brown to gray; contains thin caliche layer	46	156
			Sand, fine to medium; and gravel	20	176
			Silt, sandy, light-brown; contains thin sand lenses	8	184
			Sand, fine to coarse; and fine to medium gravel	24	208
			Silt, sandy, light-brown; and caliche	12	220
			Sand, fine to coarse; and fine gravel	6	226
			Silt, sandy, brown and yellow-brown	4	230
			Sand, gravel, and sandy silt	4	234
			Silt, sandy, limy; contains caliche	3	237
			Sand, gravel, and interbedded tan silt	11	248
			Gravel, fine to medium sand, medium to very coarse sand	48	296
			Silt, hard, tan	5	301
			Sand, fine to very coarse; and fine to medium gravel	17	318
	Pliocene
		Ogallala Formation
			Silt, hard, tan	6	324
			Sand, fine to coarse, and fine to medium gravel	26	350
			Silt, hard, brown and gray	11	361
			Sand, fine to coarse	22.05	383.5
			Silt, sandy, red-brown	6.5	390
			Sand, fine to very coarse	30+	420

30-41-1bbb--Sample log of test hole drilled in NW NW NW sec. 1, T. 30 S., R. 41 W., in NW cor. sec. 1; 1939; altitude of land surface, 3,359 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene
			Soil, sandy, gray	4	4
			Silt, soft, brown	6	10
			Silt, light-brown to light-gray; contains calcareous nodules	6	16
			Silt, sandy, brown	11	27
			Silt, sandy, limy, tan	4	31
			Sand, medium to coarse, tan	3	34
			Silt, limy, tan	14	48
			Sand, fine to coarse, tan; and fine to coarse gravel	6	54
			Silt, sandy, brown	5	59
			Silt, sandy, limy, tan; and caliche	14	73
			Silt, sandy, limy, light-gray and brown; contains a little caliche	11	84
			Sand, fine to medium, brown	3	87
			Silt, limy, light-gray, and caliche	7	94
			Gravel, coarse, poorly sorted, brown	3	97
	Pliocene
		Ogallala Formation
			Silt, sandy, limy, gray, and caliche	12	109
			Silt, sandy, limy, brown, and caliche	30	139
			Caliche, hard	0.5	139.5
			Silt, sandy, gray, gray-green, and brown; contains a little caliche	26.5	166
			Sand, fine to coarse, tan; and fine to coarse angular gravel	22	188
			Silt, sandy, hard, brown	6	194
			Sand, fine to coarse, tan, and fine to coarse angular gravel	5	199
			Silt, sandy, brown and gray	3.5	202.5
			Sand, fine to coarse, brown; and fine to coarse angular gravel	14	216.5
Cretaceous
	Lower (?) Cretaceous
		Dakota Formation
			Clay, sandy, light-gray and brown; contains a few thin beds of sandstone	15.5	232
			Clay, gray, yellow, and red	3	235
			Clay, gray; and brokn very fine-grained sandstone	5+	240

30-41-14dd--Sample log of test hole drilled in SE SE sec. 14, T. 30 S., R. 41 W., 0.08 mile north and 45 feet west of SE cor. sec. 14; May 24, 1960; altitude of land surface, 3,347 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Topsoil	3	3
			Silt, brown; and fine sand streaks	17	20
			Sand, fine, brown	10	30
			Sand, fine, tan; with clay streaks	10	40
			Sand, coarse to fine, brown, and a little fine gravel	13	53
			Silt, brown	4	57
			Sand, coarse to fine, brown; and a little fine gravel	13	70
	Pliocene
		Ogallala Formation
			Sand, fine to medium, brown; with thin silt streaks	20	90
			Silt, hard, brown	22	112
			Sand, fine, brown; and sandy silt streaks	6	118
			Sand, fine to medium, loose, brown; with a few thin, brown, hard silt and sandy silt streaks	9	127
			Silt, hard, and sandy silt	8	135
			Sand, fine, brown	8	143
			Sand, fine to medium, brown, and caliche; with a little hard silt	5	148
			Silt, hard, brown; and sandy silt streaks	5	153
			Sand, fine to medium, loose, brown	6	159
			Sand, fine to medium, loose, brown; with brown hard silt streaks	4	163
			Sand, fine to coarse, brown; with very few silt streaks	8	171
			Sand, coarse to fine, loose, brown, and fine gravel; with a few thin silt streaks	16	187
			Sand, fine, hard, white	5	192
			Silt, hard, brown	3	195
			Sand, fine, hard, white; with thin, brown, hard silt streaks	14	209
			Silt, hard, brown; with a few thin, white, fine sand streaks	8	217
			Sand, fine, tan-yellow	3	220
Cretaceous
	Lower (?) Cretaceous
		Dakota (?) Formation
			Sandstone, fine, hard, tan, and rusty brown streaks; with thin, brown, hard shale streaks	2	222
			Sandstone, fine, hard, tan and rusty brown streaks; with thin brown and blue shale streaks	3+	225

30-41-30bcc--Sample log of test hole drilled in SW SW NW sec. 30, T. 30 S., R. 41 W., about 0.5 mile south of NW cor. sec. 30; June 1960; altitude of land surface, 3,446 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene (?)
			Silt, dark-brown	10	10
			Silt, red-tan; with caliche and fine to coarse sand	10	20
			Silt, tan; and soft caliche	10	30
			Silt, brown, and caliche	10	40
			Silt, sandy, gray-brown; and soft caliche	10	50
			Silt, gray-brown	25	75
			Silt, sandy, reddish-brown	30	105
			Sand, fine to coarse, brown	15	120
			Sand, very fine to medium, brown	14	134
	Pliocene
		Ogallala Formation
			Silt, tan	4	138
			Silt, sandy, hard, brown	20	158
			Silt, brown	9	167
			Sand, coarse, and fine gravel	19	186
			Sand, fine to coarse, partially cemented with iron, dark-brown	9	195
Cretaceous
	Lower Cretaceous
		Kiowa Shale
			Shale, black	29	224
			Shale, black; with hard streaks	2	226
			Shale, black	4+	230

30-42-29aa3--Sample log of test hole drilled by Huber Oil Co. in NE NE sec. 29, T. 30 S., R. 42 W., about 0.25 mile south and 0.25 mile west of NE cor. sec. 29; 1958; altitude of land surface, 3,560 feet.				Thickness, feet	Depth, feet
Neogene
	Undifferentiated Pleistocene and Pliocene
			Sand, fine to coarse; and fine gravel	30	30
			Sand, fine to coarse, and gravel; predominantly sandstone fragments	50	80
Cretaceous
	Lower Cretaceous
		Dakota Formation [Lower (?) Cretaceous]
			Shale, sandy, gray, and dark red-brown to brown sandstone	70	150
			Sandstone, fine dark-brown, and gray, sandy shale	45	195
		Kiowa Shale
			Shale, black	60	255
		Cheyenne Sandstone
			Sandstone, fine, gray to brown	125	380
Triassic
	Upper Triassic
		Dockum Group
			Sandstone, fine, pink to red	160	540
Permian
	Cimarronian
		Big Basin Formation
			Siltstone, red to tan	60+	600

30-43-9dad--Sample log of test hole augered in SE NE SE sec. 9, T. 30 S., R. 43 W., about 0.7 mile south of NE cor. sec. 9; September 1958; altitude of land surface, 3,643 feet.				Thickness, feet	Depth, feet
Neogene--Undifferentiated
			Silt, sandy, gray	5	5
			Clay, very sandy, brown	10	15
			Silt, very sandy, brown	15	30
			Sand, very coarse; and brown clay	4	34
Cretaceous
	Lower (?) Cretaceous
		Dakota (?) Formation
			Sandstone, hard	?	34

30-43-28add--Sample log of test hole augered in SE SE NE sec. 28, T. 30 S., R. 43 W., about 0.5 mile south and 10 feet west of NE cor. sec. 28; September 1958; altitude of land surface, 3,590 feet.				Thickness, feet	Depth, feet
Neogene--Undifferentiated
			Sand, fine to very fine, grayish-brown	5	5
			Sand, medium to fine, gray; contains coarse gravel	7	12
			Sand, medium to fine, limonite-brown	3	15
			Sand, coarse to fine, loose and clean, gray-brown	5	20
			Sand, very coarse to fine, gray	26	46
Cretaceous
	Lower(?) Cretaceous
		Dakota (?) Formation
			Sandstone(?), hard	?	46

30-43-33aaa--Sample log of test hole augered in NE NE NE sec. 33, T. 30 S., R. 43 W., in NE cor. sec. 33; September 1958; altitude of land surface, 3,623 feet.				Thickness, feet	Depth, feet
Neogene--Undifferentiated
			Sand, medium to fine, gray	5	5
			Silt, sandy, tan	10	15
			Clay, light-tan, and sand	5	20
			Silt, light-tan to white, and sand	25	45
			Sand, medium to fine, brownish-gray	5	50
			Sand, fine, brown	5	55
			Sand, fine, very silty, brown	5	60
			Sand, fine, very silty, tan	5	65
			Sand, fine, very silty, gray, (Nearby irrigation well drilled to 103 feet; therefore, sand and gravel assumed from 70 to 103 feet)	5+	70

---

Prev Page--Grant County Logs || Next Page--References

Kansas Geological Survey, Geology
Placed on web July 30, 2007; originally published December 1964.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/General/Geology/Stanton/09_logs2.html