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Announcement The Northwood Branch will be re-opening on December 9, 2024.

Location Closure The Patterson Park Branch is closed through Saturday, December 7 due to a facilities maintenance issue.

Location Closure The Forest Park, Washington Village, Herring Run, Brooklyn, & Northwood branches are closed for renovations. Learn more here.

Maryland & DC Sanborn Maps

Sanborn Maps

Browse a selection of Maryland and Washington DC Sanborn Maps from 1890 - 1953. Users have the ability to easily manipulate the maps, magnify and zoom in on specific sections, and layer maps from different years. Powered by ProQuest.

Accessible in all Pratt Library locations, or from home with your library card.