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

This report contains digital data and accompanying documentation for base of aquifer contours of the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. The original data are from the 1:1,000,000-scale mylar source map for Gutentag and others (1984).