1. Hydrogeologic unit map of the Piedmont and Blue Ridge Provinces of North Carolina Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Raleigh, North Carolina : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
2. Hydrogeology and preliminary assessment of the potential for contamination of the Memphis Aquifer in the Memphis area, Tennessee Author/Creator: Parks, William Scott, author Publication/Creation: Memphis, Tennessee : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
3. Hydrogeology and quality of ground water in the Boone Formation and Cotter Dolomite in karst terrain of northwestern Boone County, Arkansas Author/Creator: Leidy, Valarie A., author Publication/Creation: Little Rock, Arkansas : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
4. Hydrogeology of the Ojo Alamo Sandstone in the San Juan structural basin, New Mexico, Colorado, Arizona and Utah Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
5. Hydrogeology of the valley-fill aquifer at Owego, Tioga County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Albany, New York : U.S. Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
6. Hydrogeology, water quality, and ground-water development alternatives in the lower Wood River ground-water reservoir, Rhode Island Author/Creator: Dickerman, David C., author Publication/Creation: Providence, Rhode Island : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
7. Hydrology and land use in Grand Traverse County, Michigan Author/Creator: Cummings, T. Ray, author Publication/Creation: Lansing, Michigan : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading