41. Geology, structure, and thickness of hydrogeologic units in part of the Columbia Plateau, Oregon Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Portland, Oregon : Department of the Interior, United States Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
42. Ground-water availability from the unconsolidated deposits of the St. Lawrence River Basin, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Albany, New York : United States Department of the Interior, Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
43. Ground-water availability in the Black River Basin, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Ithaca, New York : United States Department of the Interior, Geological Survey, 1986 Resource Type: Map Access & Availability: Loading
44. Ground-water flow system and aquifer-storage monitoring networks : aquifer-storage change in the lower Canada del Oro subbasin, Pima County, Arizona, 1996-98 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1999 Resource Type: Map Access & Availability: Loading
45. Ground-water levels and flow directions in the buried valley aquifer around Dayton, Ohio, September 1993 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1998 Resource Type: Map Access & Availability: Loading
46. 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
47. 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
48. 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
49. 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
50. 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