Digital Sanborn Maps
Digital Sanborn Maps, 1867-1970. Michigan Only. The Sanborn Map Company was the primary American publisher of fire maps for over 100 years, repeatedly mapping towns and cities as they changed. The maps provide a wealth of information, such as building outline, size and shape, construction materials, height, building use, windows and doors, street and sidewalk widths, boundaries, house numbers, and more for cities mapped in the state of Michigan.