Search for historic Sanborn Maps of San Francisco.
Access to more than 660,000 large-scale maps of more than 12,000 American towns and cities. Sanborn maps are historical tools for urban specialists, social historians, architects, geographers, genealogists, local historians, planners, environmentalists. Founded in 1867 by D. A. Sanborn, the Sanborn Map Company was the primary American publisher of fire insurance maps for nearly 100 years.
