1. Hydrogeologic and water-quality characteristics of the Cretaceous aquifer, southwestern Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
2. Hydrogeologic interpretations from available ground-water data, Tutuila, American Samoa Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1999 Resource Type: Map Access & Availability: Loading
3. Hydrogeologic maps of the central Oklahoma aquifer, Oklahoma Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
4. Hydrogeologic terranes and potential yield of water to wells in the Valley and Ridge Physiographic Province in Maryland, New Jersey, and Pennsylvania Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, 1996 Resource Type: Map Access & Availability: Loading
5. Hydrogeology, groundwater levels, and generalized potentiometric-surface map of the Green River Basin lower tertiary aquifer system, 2010-14, in the northern Green River structural basin, Wyoming Author/Creator: Bartos, Timothy T., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015 Resource Type: Book Access & Availability: Loading
6. Hydrogeology of structurally extended terrain in the eastern Great Basin of Nevada, Utah, and adjacent states, from geologic and geophysical models Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : The Survey, 1996 Resource Type: Map Access & Availability: Loading
7. Hydrogeology of the eastern part of the Salt River Valley area, Maricopa and Pinal counties, Arizona Author/Creator: Laney, R. L., author Publication/Creation: Tucson, Arizona : U.S. Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Map Access & Availability: Loading