Potentiometric-surface altitude raster for the shallow groundwater system in the Lower Gunnison River Basin, Colorado

This dataset consists of altitudes values (in feet) representing the generalized potentiometric surface of the shallow groundwater system in the Lower Gunnison River Basin in Delta, Montrose, Ouray, and Gunnison Counties, Colorado. Potentiometric-surface altitude values were computed as the difference between land surface and depth to water represented by dataset dtw. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Water Conservation Board.