1. Historical potentiometric surface of the Edwards-Trinity Aquifer System and contiguous hydraulically connected units, west-central Texas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Austin, Texas : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
2. Historical saturated thickness of the Edwards-Trinity aquifer system and selected contiguous hydraulically connected units, west-central Texas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Austin, Texas : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
3. Hydraulic conductivity, specific yield, and pumpage--High Plains Aquifer system, Nebraska 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
4. Hydrogeologic and geochemical characteristics of the Ogallala and White River aquifers, Cheyenne, Wyoming Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
5. Hydrogeologic and water-quality characteristics of glacial-drift aquifers in Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: St. Paul, Minnesota : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
6. Hydrogeologic and water-quality characteristics of the Ironton-Galesville aquifer, southeast Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [St. Paul, Minn.] : United States Department of the Interior, Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
7. Hydrogeologic and water-quality characteristics of the Mount Simon-Hinckley aquifer, southeast Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: St. Paul, Minnesota : United States Department of the Interior, Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
8. Hydrogeologic and water-quality characteristics of the Prairie du Chien-Jordan aquifer, southeast Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: St. Paul, Minnesota : United States Department of the Interior, Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
9. Hydrogeologic and water-quality characteristics of the Red River-Winnipeg aquifer, northwestern Minnesota Author/Creator: Ruhl, J. F., author Publication/Creation: St. Paul, Minnesota : Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Map Access & Availability: Loading
10. Hydrogeologic and water-quality characteristics of the St. Peter aquifer, southeast Minnesota Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: St. Paul, Minnesota : United States Departmenr of the Interior, Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
11. Hydrogeologic atlas of aquifers in Indiana Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Indianapolis, Indiana : U.S. Geological Survey, 1994 Resource Type: Map Access & Availability: Loading
12. Hydrogeologic framework and geochemistry of ground water and petroleum in the Silurian-Devonian carbonate aquifer, south-central Louisville, Kentucky Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Map Access & Availability: Loading
13. Hydrogeologic framework and ground-water levels, 1982 and 1996, middle Humboldt River Basin, north-central Nevada 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
14. Hydrogeologic framework and potentiometric surface of the Williamson Creek Aquifer "B" sand in the Fort Polk area, Vernon Parish, Louisiana, March 1997 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading
15. 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
16. Hydrogeologic unit map of the Piedmont and Blue Ridge Provinces of North Carolina Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Raleigh, North Carolina : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
17. Hydrogeology, land-subsidence projections, and earth-fissure hazards along the Tucson Aqueduct alignment of the Central Arizona Project in Pinal and Pima Counties, Arizona Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2002 Resource Type: Map Access & Availability: Loading
18. Hydrogeology of Post-Wilcox Group stratigraphic units in the area of the Naval Air Station Memphis, near Millington, Tennessee Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Memphis, Tenn. : U.S. Department of the Interior, U.S. Geological Survey, 1995 Resource Type: Map Access & Availability: Loading
19. Hydrogeology of the Clifton Park area, Saratoga County, New York 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
20. Hydrogeology of the Croton-Ossining area, Westchester County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Albany, New York : Department of the Interior, U.S. Geological Survey, 1988 Resource Type: Map Access & Availability: Loading