Those seeking historic records of commercial and residential development across Utah can now access them easily online through the digital collection of Sanborn Insurance Maps at the University of Utah’s J. Willard Marriott Library. The library has completed digitization of Utah’s maps created by the D.A. Sanborn Co., the first company to provide fire insurance maps nationally. The fully searchable digital collection contains maps of Salt Lake City and Ogden created between 1884 and 1950; Logan maps from the years 1885, 1890, 1900, 1930, 1955; and all other Utah maps up until 1922.
Color-coding of building materials makes all of the maps easy to understand at a glance. Until 1911, the maps were handmade and hand-colored. Subsequently, corrections and amendments were pasted on top every few years.