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URBS 103: Industrial Metropolis Course Guide: Sanborn Maps

Sanborn Fire Insurance Maps

The Sanborn Map Company helped fire insurance companies set rates in the late 19th and early 20th centuries with these detailed maps of each built structure, its use, dimensions, height, building material, and other relevant features (fire alarms, water mains and hydrants, for example).

Other Historic Maps

Sanborn Maps

Map 38. "Philadelphia, Pennsylvania." 1916. Sanborn Fire Insurance Maps, 1916- 1922 - Pennsylvania. 
Retrieved from http://collection1.libraries.psu.edu/cdm/compoundobject/collection/maps1/id/16055/rec/1