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U.S. Geological Survey (USGS)

The U.S. Geological Survey is the nation's largest water, earth, and biological science and civilian mapping agency. It collects, monitors, analyzes, and provides scientific understanding of natural resource conditions, issues, and problems.

Contact the Agency or Department

Website: U.S. Geological Survey (USGS)

Contact In-Person: Water Resources Offices State Offices

Address: 12201 Sunrise Valley Drive
Reston, VA 20192

Toll-free: 1-888-ASK-USGS (275-8747)