41. 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
42. Thickness of the Mississippi River Valley alluvial aquifer in eastern Arkansas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Little Rock, Arkansas : U.S. Department of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
43. 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
44. 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
45. The Sparta aquifer system in Mississippi Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Jackson, Mississippi : Department of the Interior, United States Geological Survey, 1975 Resource Type: Map Access & Availability: Loading
46. Sand and gravel aquifers of Schuyler County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Ithaca, New York : U.S. Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
47. Saltwater intrusion in the shallow aquifer in Martin and Palm Beach Counties, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1977 Resource Type: Map Access & Availability: Loading
48. Regional potentiometric-surface map of the Great Basin carbonate and alluvial aquifer system in Snake Valley and surrounding areas, Juab, Millard, and Beaver Counties, Utah, and White Pine and Lincoln Counties, Nevada Author/Creator: Gardner, Philip Michael Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
49. Recharge and discharge areas of the Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
50. Quality of freshwater in aquifers of Louisiana, 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Baton Rouge, Louisiana : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading