About the OldInsuranceMaps.net category

Welcome! OldInsuranceMaps.net is a crowdsourcing platform for historical map georeferencing, built around the digital Sanborn map collection at the Library of Congress, and this is a place to talk about it!

Sanborn maps are a tremendous source for OpenHistoricalMap contributions if you are working in American towns or cities between 1880 and 1960. See this guide for more info on how to use these maps in OHM.