Interstate 85 (I-85) is a part of the Interstate Highway System that runs from Montgomery, Alabama, to Petersburg, Virginia. In Alabama, the Interstate Highway runs 80.008 miles (128.760 km) from I-65 in Montgomery north to the Georgia state line near Valley. I-85 is the primary highway between Montgomery and Atlanta. The Interstate also connects Montgomery with Tuskegee, Auburn, Opelika, and, indirectly, Phenix City and Columbus, Georgia.