1. Geohydrology of the High Plains aquifer system in Nebraska Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Lincoln, Neb.] : Department of the Interior, United States Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
2. Base of principal aquifer for parts of the North Platte, South Platte, and Twin Platte Natural Resources District, western Nebraska Author/Creator: Hobza, Christopher M., cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Map Access & Availability: Loading