1988 ALT-SR91 (State Route 91/U.S. 91, Alternate)

The 1988 ALT-SR91 (State Route 91/U.S. 91, Alternate, Utah) vertical, black and white (panchromatic) aerial project was acquired by the Utah Department of Transportation (UDOT) at a scale of 1:12000 (1 inch equals 1000 feet).