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Research Center Geography and Map Reading Room

Location & Contact Information

plan view of James Madison Building basement floor plan with room names and numbers identified
Basement floor James Madison Memorial Building - Library of Congress

Geography and Map Reading Room

101 Independence Ave. SE
James Madison Memorial Building, LM B01
Washington, D.C. 20540-4680


Capitol South on the Blue, Orange, and Silver lines

Request a Research Appointment

We encourage appointments at least 24 hours in advance, but walk-ins are welcome.
Request a research appointment


Email reference queries may be sent to the Geography and Map Reading Room by using Ask a Librarian.


Phone: (202) 707-6277


Mail can be sent to the address below. Please note, however, that US Postal Service mail delivery to Capitol Hill may experience significant delays due to security protocols. For the most prompt response, please contact us through Ask a Librarian.

Geography and Map Division
101 Independence Ave. SE
Washington, D.C. 20540-4650


Library of Congress
101 Independence Ave. SE
James Madison Building, LM B01
Washington, DC 20540-4650
View map External link


Public Hours
Monday through Friday 8:30 a.m. - 5:00 p.m.
Final item requests at 4:15 p.m.
Closed Weekends & Federal Holidays
Request a research appointment