21. Delineation of flooding within the upper Mississippi River Basin-flood of June 19-July 31, 1993, in Davenport, Iowa and vicinity Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : The Survey, 1996 Resource Type: Map Access & Availability: Loading
22. Geohydrology of the shallow aquifers in the Denver metropolitan area, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, 1996 Resource Type: Map Access & Availability: Loading
23. Susceptibility of ground water to surface and shallow sources of contamination in Mississippi Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
24. Geologic history and hydrogeologic units of intermontane basins of the northern Rocky Mountains, Montana and Idaho Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
25. Geology and ground-water resources of the Blackfeet Indian Reservation, northwestern Montana Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
26. Delineation of flooding within the upper Mississippi River Basin, 1993-flood of June 29-September 18, 1993, in Iowa City and vicinity, Iowa Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, [1996] Resource Type: Map Access & Availability: Loading
27. Distribution of oil and natural-gas wells in relation to ground-water flow systems in the Great Basin region of Nevada and Utah, and adjacent states Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
28. Hydrogeology of structurally extended terrain in the eastern Great Basin of Nevada, Utah, and adjacent states, from geologic and geophysical models Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : The Survey, 1996 Resource Type: Map Access & Availability: Loading
29. Quality of ground water and surface water in intermontane basins of the northern Rocky Mountains, Montana and Idaho Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
30. Delineation of flooding within the upper Mississippi River Basin-flood of June 18 through August 4, 1993, in Des Moines and vicinity, Iowa Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.?] : The Survey, 1996 Resource Type: Map Access & Availability: Loading