USGS Library locations are open to visitors Monday to Friday from 9 am to 3 pm local and other times by appointment; closed Federal holidays. Contact the library at library@usgs.gov to set up an appointment.
USGS Library locations will be closed for the Holidays from November 27-28, 2025, and December 24, 2025 through January 2, 2026. Virtual service requests continue with email to library@usgs.gov. We look forward to serving you in the New Year.
USGS Library
Authorized by Congress in 1879, the U.S. Geological Survey Library is recognized as one of the world’s leading Earth and natural science libraries, providing services, collections, and expertise essential to the USGS mission.
Ask a Librarian
Each library location has expert reference librarians available to assist with research and provide answers to reference questions received by phone, fax, or in person. To ask for reference assistance by E-mail, Ask a Librarian at library@usgs.gov.
Quick Links
Use these links to access library resources.