SH-85 begins at State Highway 82 west of the town of Ketchum, in Craig County.

The highway travels east along Ketchum Road into the town.

Shortly after crossing the county line, the route turns north.

The road crosses the Duck Creek arm of Grand Lake,[3] then turns east and then northeast before returning to a due north course.

The highway travels east to pass through the town of Bernice, on the shores of Grand Lake.