Business Loop I-90 - Big Timber

Business Loop I-90 at Big Timber arcs 4.2 miles north from Exits 367 and 370 of Interstate 90. The western half of the route doubles as U.S. 191 along 1st Avenue (old U.S. 10), while the eastern section takes Big Timber Loop Road across the Boulder River back to I-90. One shield per direction was noted on a 2016 visit to the city.