From here to the Missouri River crossing south of Wolf Point, the highway is classified as part of the scenic Big Sky Back County Byway.

[3] MT 13 proceeds in a northeasterly direction for a few miles before turning onto its main northerly orientation.

The road travels through the eastern portions of McCone County, servicing the small community of Vida along the way.

[2]Up until the 1960s, MT 13 used to reach the international boundary at the Port of Whitetail, east of its current northern terminus.

In addition, the highway used to extend south of its current terminus of Circle, passing through Brockway to Terry.