Fire Insurance Maps Online (FIMo) This link opens in a new window
This resource contains full color detailed town maps of 339 Michigan towns from 1880 to 1960. Most content is from the Sanborn Fire Insurance Company, but this growing database will continue to add fire insurance maps from other publishers and other large scale maps. The database is searchable by address, by coordinates, or by a clickable map interface. New: as of June 2022, also includes maps from Illinois, Indiana, Ohio and Wisconsin.