Texas Digital Sanborn Maps (1867-1970) This link opens in a new windowProvides digital access to more than 660,000 large-scale maps of over 12,000 American towns and cities. Founded in 1867 by D. A. Sanborn, the Sanborn Map Company was the primary American publisher of fire insurance maps for nearly 100 years. Sanborn maps are valuable research tools for geographers, social historians, urban specialists, genealogists, planners, local historians, architects, environmentalists, and anyone who wants to learn about the history, growth, and development of American cities, towns, and neighborhoods. Users have the ability to manipulate the maps, magnify and zoom in on specific sections, and easily print them out.