1. Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks, northeastern Chester County, Pennsylvania, May through October 1990 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Lemoyne, Pa.] : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
2. Analysis of the magnitude and frequency of floods and the peak-flow gaging network in Montana Author/Creator: Omang, R. J., author Publication/Creation: Helena, Montana : U.S. Geological Survey, [1992] Resource Type: Book Access & Availability: Loading
3. Areal and temporal variations in surface-water quality in the upper Potomac River basin Author/Creator: Trombley, Thomas J., author Publication/Creation: Towson, Maryland : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
4. Altitude of top of bedrock in the vicinity of Wright-Patterson Air Force Base, Ohio Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Columbus, Ohio : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
5. Aquifer-test results, direction of ground-water flow, and 1984-90 annual ground-water pumpage for irrigation, lower Big Lost River Valley, Idaho Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Boise, Idaho : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
6. Altitude of the potentiometric surface, September 1990, and historic water-level changes in the Memphis aquifer in the Memphis area, Tennessee Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Nashville,TN] : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
7. Availability and quality of water from the alluvial, glacial-drift, and Dakota aquifers and water use in southwest Iowa Author/Creator: Hansen, R. E., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading