Digital map of geologic faults for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming

This digital data set consists of faults for the High Plains
aquifer in the central United States. The High Plains aquifer
extends from south of 32 degrees to almost 44 degrees north
latitude and from 96 degrees 30 minutes to 106 degrees west
longitude. The outcrop area covers 174,000 square miles and is
present in Colorado, Kansas, Nebraska, New Mexico, Oklahoma,
South Dakota, Texas, and Wyoming.

This digital data set was created by digitizing the faults from
a 1:1,000,000-scale base map created by the U.S. Geological
Survey High Plains Regional Aquifer-System Analysis (RASA)
project (Gutentag, E.D., Heimes, F.J., Krothe, N.C., Luckey,
R.R., and Weeks, J.B., 1984, Geohydrology of the High Plains
aquifer in parts of Colorado, Kansas, Nebraska, New Mexico,
Oklahoma, South Dakota, Texas, and Wyoming: U.S. Geological
Survey Professional Paper 1400-B, 63 p.) The data are not
intended for use at scales larger than 1:1,000,000.