In Oklahoma, I-35 runs from the Red River at the Texas border to the Kansas line near Braman, passing through many of the state's major cities, including Ardmore and the cities of the Oklahoma City Metropolitan Area such as Norman, Guthrie, Edmond, and the state capital and largest city, Oklahoma City. In Downtown Oklahoma City, I-35 has a major junction with I-40 and spurs into I-235 through the north central inner city.