U.S. Route 191 in Utah

U.S. Route 191
US 191 highlighted in red
Route information
Maintained by UDOT
Length404.168 mi (650.445 km)
Existed1981–present
Tourist
routes
US 191 from Crescent Junction through Vernal is part of the Dinosaur Diamond Prehistoric Highway
NHSSouth of I-70 and concurrencies with I-70, US 6, and US 40
Major junctions
South end US 191 / BIA Route 12 towards Mexican Water, AZ
Major intersections
North end US 191 towards Rock Springs, WY
Location
CountryUnited States
StateUtah
CountiesSan Juan, Grand, Emery, Carbon, Duchesne, Uintah, Daggett
Highway system
  • Utah State Highway System
SR-190 SR-193

U.S. Route 191 (US 191) is a major 404.168-mile (650.445 km), northsouth U.S. Numbered Highway through eastern Utah, United States. The present alignment of US 191, which stretches from Mexico to Canada, was created in 1981 through Utah. Previously the route had entered northern Utah, ending at US 91 in Brigham City, but with the completion of Interstate 15 it was truncated to Yellowstone National Park and re-extended on a completely different alignment. In addition to a large portion of U.S. Route 163 in Utah (|US 163, this extension absorbed several state routes: the former Utah State Route 33, most of Utah State Route 44, and the former Utah State Route 260.