Sanborn Fire Insurance MapsThe Sanborn Fire Insurance Map Company, established in 1867, compiled and published maps of U.S. cities and towns for the fire insurance industry to assess fire risk. Documenting the layout of 390 Missouri cities from 1883 to 1951, the 1283 maps in the collection are an invaluable research tool for urban historians, architectural historians, environmentalists, genealogists and preservationists.