U.S. Route 85 (US 85) is a major north-south United States highway stretching approximately 1,479 miles (2,380 km) from the Mexican border to the Canadian border, passing through the Mountain and Northern Plains states. Established in 1926, it serves as a critical, often rural, transportation artery, integral to commerce, energy transport, and historical trade routes.
A distinct, major interstate in the southeastern U.S. running from Montgomery, Alabama, to Petersburg, Virginia. Highway 85
The route connects Wyoming to the Black Hills region of South Dakota, serving as a critical connector for rural communities. Development and Environmental Considerations 479 miles (2