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U.S. Geological Survey

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.

Toll-free number

1-888-ASK-USGS (1-888-275-8747)

Find an office near you

Main address

12201 Sunrise Valley Dr.
Reston, VA 20192

Do you have a question?

Ask a real person any government-related question for free. They will get you the answer or let you know where to find it.