U.S. Route 91

U.S. Route 91 or U.S. Highway 91 (US 91) is a 172.663 miles-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.

Route information
Maintained by UDOT and ITD
Length	172.663 mi (277.874 km)
Existed	1926–present
Major junctions
South end	in Brigham City, UT
Major intersections	in Logan, UT in McCammon, ID in Pocatello, ID
North end	in Idaho Falls, ID
Highway system
United States Numbered Highway System List Special Divided
← →

U.S. Route 91 Media

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  US-91 south of Richmond, Utah.

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  US 91 shield used in California

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  This image is a representation of a 1950's technicolor U.S. Route shield used by Arizona. Each color meant a different direction. Brown meant East, Green meant South, Orange meant North and Blue meant West. Arizona replaced the signs with traditional Black and White shields in the late 50's early 60's.

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  This image is a representation of a 1950's technicolor U.S. Route shield used by Arizona. Each color meant a different direction. Brown meant East, Green meant South, Orange meant North and Blue meant West. Arizona replaced the signs with traditional Black and White shields in the late 50's early 60's.