21. 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
22. 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
23. Altitude and generalized configuration of the top of the Floridan aquifer, St. Johns County, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tallahassee, Florida : Department of the Interior, United States Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
24. Generalized thickness and configuration of the top of the intermediate aquifer, west-central Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Tallahassee, Fla.] : Department of the Interior, United States Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
25. Geohydrology of the glacial-outwash aquifer in the Batavia area, Tonawanda Creek, Genesee County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Ithaca, N.Y.] : United States Department of the Interior, Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
26. 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
27. 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
28. 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
29. 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
30. 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