21. Ground-water resources at Diego Garcia, 1985-96 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading
22. Susceptibility index to surface contamination for the Little Cross Creek Watershed, Cumberland County, North Carolina Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading
23. Bathymetry and selected perspective views of Crater Lake, Oregon Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading
24. Bathymetric survey of Cross Lake, Caddo Parish, Louisiana, April through June 1996 Author/Creator: McGee, Benton D. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading
25. Hydrogeologic and geochemical characteristics of the Ogallala and White River aquifers, Cheyenne, Wyoming Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
26. Unconsolidated aquifers in Tompkins County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
27. Time of travel of solutes in Buffalo Bayou and selected tributaries, Houston, Texas, August 1999 Author/Creator: Geological Survey (U.S.) Publication/Creation: [Austin, Tex.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
28. Assessment of the effect of road construction and other modifications on surface-water flow at St. Vincent National Wildlife Refuge, Franklin County, Florida Author/Creator: Davis, J. Hal Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
29. Spatial distribution, temporal variability, and chemistry of the salt wedge in the lower Charles River, Massachusetts, June 1998 to July 1999 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
30. Areas of gain and loss along the Platte River, central Nebraska, spring 1999 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading