51. Susceptibility of major aquifers to surface contamination - Holmes, Humphreys, Issaquena, Sharkey, Washington, and Yazoo counties, Mississippi Author/Creator: Geological Survey (U.S.) Publication/Creation: Jackson, Miss. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Can be purchased from Earth Science Information Center, Open-File Reports Section, 1993 Resource Type: Map Access & Availability: Loading
52. Bedrock-surface altitude in the midwestern basins and arches region of Indiana, Ohio, Michigan, and Illinois Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Columbus, Ohio : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
53. Thickness of the Mississippi River Valley confining unit, eastern Arkansas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Little Rock, Arkansas : U.S. Department of the Interior, U.S. Geological Survey, 1993, 1994 Resource Type: Map Access & Availability: Loading
54. Properties and chemical constituents in ground water from the lower Wilcox Aquifer, Mississippi Embayment Aquifer System, south-central United States 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
55. 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
56. Maps showing recharge areas and quality of ground water for the Navajo Aquifer, western Washington County, Utah Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
57. Susceptibility of major aquifers to surface contamination - Holmes, Humphreys, Issaquena, Sharkey, Washington, and Yazoo counties, Mississippi Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Jackson, Mississippi : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
58. Properties and chemical constituents in ground water from the middle Wilcox Aquifer, Gulf Coast Regional Aquifer Systems, south-central United States 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
59. Potentiometric-surface map, October through December 1988, and water-level change map, 1983-88, of the Mississippi River alluvial aquifer in northwestern Mississippi Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Jackson, Mississippi : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Map Access & Availability: Loading
60. Properties and chemical constituents in ground water from permeable Zone D (middle Miocene deposits), Coastal Lowlands Aquifer System, south-central United States 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