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Sanborn Maps
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Virtual Resource

Digital Sanborn Maps, 1867-1970 provides access to more than 660,000 large-scale maps for more than 12,000 American towns and cities. Sanborn fire insurance maps are the most frequently consulted maps in libraries, and are valuable historical tools. In electronic form, Sanborn maps allow users to easily manipulate the maps, magnify and zoom in on specific sections, and layer maps from different years.

Access to Sanborn Maps through the Western Maryland subscription will end on June 30, 2021. Additional Sanborn maps can also be found through the Library of Congress website.

Fire Insurance Map Research Guide