West of Bozeman, the Hyline Raceway has a track open to dirt bike riding.
To reach Hyline Raceway motocross track from Bozeman, head west on 191 to Four Corners (6 miles). Continue West at Four Corners on Hwy 84 for 1.2 Miles. Turn right on River Rd. Continue North on River Rd. for 3.1 Miles. Turn left on Bitterroot Rd. and continue West for .7 Miles. The track can be seen off to the south (left side of road) down in the lower area of the field. Pass through gate and follow road south to the parking area (.25 mile)
Overall, Hyline Raceway is the 22nd most popular dirt bike trail of all 30 dirt biking rides in Montana.