1. Generalized altitude and configuration of the water table in parts of Larimer, Loogan, Sedgwick, and Weld Counties, Colorado Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
2. 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