41. 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
42. Maps showing altitude of the potentiometric surface and changes in water level of the Sparta sand and Memphis sand aquifers in Eastern Arkansas, spring 1983 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Little Rock, Arkansas] : U.S. Department of the Interior, U.S. Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
43. Maps showing altitude of the potentiometric surface and changes in water levels of the alluvial aquifer in eastern Arkansas, Spring 1983 Author/Creator: Edds, Joe, 1924- cartographer Publication/Creation: [Litte Rock, Arkansas] : U.S. Department of the Interior, U.S. Geological Survey, [1984] Resource Type: Map Access & Availability: Loading
44. Potentiometric map of the paleozoic aquifer in northeastern Mississippi, November and December 1982 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Jackson, Mississippi : Department of the Interior, United States Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
45. 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
46. Water-level maps of the alluvial aquifer, Northwestern Mississippi, April 1983 Author/Creator: Sumner, D. M., author Publication/Creation: Jackson, Mississippi : Department of the Interior, U.S. Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
47. Altitude and configuration of the water table in the High Plains aquifer in Kansas, 1980 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1985 Resource Type: Map Edition: [Water-resources investigations edition]. Access & Availability: Loading
48. Approximate potentiometric surface for the aquifer unit A2, southeastern coastal plain aquifer system of the United States, prior to development 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
49. Approximate potentiometric surface for the aquifer unit A3, southeastern coastal plain aquifer system of the United States, prior to development 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
50. Approximate potentiometric surface for the aquifer unit A4, southeastern coastal plain aquifer system of the United States, prior to development 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