Digital map of water-level changes in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, predevelopment (about 1950) to 2011
The High Plains aquifer extends from south of 32 degrees to almost 44 degrees north latitude and from 96 degrees 
30 minutes to 104 degrees west longitude. The aquifer underlies about 175,000 square miles in parts of Colorado, 
Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This dataset …