Kansas Geological Survey, Open File Report 97-14
Digital Petroleum Atlas Annual Report 1996
Figure 1. a) Map showing area covered by the proposed Northern Mid-continent Digital Petroleum Atlas (http://www.kgs.ku.edu/DPA/NMC/nmc.html).
Figure 1. b) Interactive map of geologic provinces (http://www.kgs.ku.edu/ DPA/NMC/nmcProv.html).