Digital Sanborn Maps, 1867-1970 This link opens in a new windowSanborn maps, created to assist fire insurance companies assess property risk, chart the growth and development of more than 12,000 American towns and cities. Sanborn maps are large-scale plans of a city or town, drawn at a scale of 50 feet to an inch. These maps are for non-commercial use only, and may not be downloaded, clipped, printed, resold, retained or used for commercial or business research purposes.
