Category:U.S. Route 91 in Utah

English: Media realated to U.S. Route 91 in Utah (US-91), a 45.271-mile (72.857 km) section of Numbered Highway in Box Elder and Cache counties in Utah, United States. (US-91 formerly extended from California to Montana.)

From 1910 to 1962, the former routing of U.S. Route 91 (US‑91) in Utah (which at the time extended south to northwest Arizona and very roughly followed the current route of Interstate 15) was officially designated as State Route 1 by the Utah State Legislature. (However, US‑91 was not actually designated as such until 1926 with the creation of the United States Numbered Highway System.) In 1962, the State Route 1 designation was applied to Interstate 15. In 1974, the section of US‑91 between the Arizona border and Brigham City was removed from the United States Numbered Highway System. In 1977, the Utah State Legislature designated US‑91 as State Route 91.