Neglected by Park County road crews for years because of its location, the road deteriorated and, following the June 2022 flooding, is now in even worse shape. About 25 miles south of Big Timber, the Main Boulder Road enters a mountain canyon. For the next 50 miles, the road follows the Boulder River south, weaving between Sweet Grass and Park counties. With the lower load limit, Whitman said it’s not practical for Park County to repair the road to Box Canyon. “We will need to perform a large amount of maintenance to the Main Boulder Road to get equipment to the collapsed bridges.