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Location Closure The Forest Park Branch is closed for renovations. The Washington Village Branch is closed for facility maintenance. The Walbrook Branch is closed for HVAC repairs.

Holiday Closing All Pratt Library locations will be closed Friday, March 29 in observance of Good Friday.

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.