Location Closure The Hamilton Branch will be closed beginning Monday, June 16 for facility improvements.

Announcement The Pennsylvania Avenue Branch will be closed beginning at 4 pm on Monday, June 9 due to a facilities maintenance issue. The branch will operate on a reduced schedule with limited services 10 am–4 pm through Friday, June 13.

Location Closure The Govans, Forest Park, Washington Village, Reisterstown Road, Brooklyn, Northwood, & Herring Run branches are closed for facility improvements. Learn more here.

Holiday Closing All Pratt Library locations will be closed Thursday, June 19 in observance of Juneteenth.

Home / Research / Databases / Maryland & DC Sanborn Maps

Maryland & DC Sanborn Maps

Sanborn Maps

Browse a selection of Maryland and Washington DC Sanborn Maps from 1890–1953. Search and 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.