Water-level change, High Plains aquifer, 2005 to 2009
This raster data set represents water-level change in the High Plains aquifer of the 
United States from 2005 to 2009, in feet. The High Plains aquifer underlies 112.6 
million acres (176,000 square miles) in parts of eight States: Colorado, Kansas, 
Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. …