U.S. Route 91

U.S. Route 91
Route information
Maintained by UDOT and ITD
Length	172.663 mi (277.874 km)
Existed	1926[1]–present
Major junctions
South end	I-15 / I-84 in Brigham City, UT
Major intersections	US-89 in Logan, UT US 30 in McCammon, ID I-86 in Pocatello, ID
North end	I-15 Business Loop / US 26 in Idaho Falls, ID
Location
Country	United States
States	Utah, Idaho
Counties	UT: Box Elder, Cache ID: Franklin, Bannock, Bingham, Bonneville
Highway system
United States Numbered Highway System List Special Divided
← US 90 US 92 →

U.S. Route 91 or U.S. Highway 91 (US 91) is a 172.663-mile-long (277.874 km) north–south United States highway that goes from Interstate 15/Interstate 84 in Brigham City, Utah, to I-15 Business/US 26 in Idaho Falls, Idaho. In the past, the highway went from Long Beach, California, to the Canada–US border north of Sweetgrass, Montana. As I-15 was being built from San Diego, California to Sweetgrass, people used US 91 less.

References

1. Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555 – via Wikimedia Commons.