Sanborn Fire Insurance Map from San Francisco, San Francisco County, California: Block Line Map

Image file

San Francisco block-line map — Right half with title and legend

Caption

Right half with title and legend. Library of Congress, Geography and Map Division, Sanborn Maps Collection.

Catalog notes

Published before San Francisco’s 1906 earthquake and fire, this block-line map records streets, selected buildings, fire limits and waterfront facilities in the central city. Its key distinguishes construction types and fire-protection features. It is included to connect urban surveying with insurance risk and to provide a view of the city before the disaster.

Original catalog record, source and attribution