West Boulder Trailhead serves as the primary access point to the West Boulder River drainage and Absaroka-Beartooth Wilderness, located 16 miles south of Big Timber on Highway 298.

The trailhead offers parking and connects to multiple trails including the popular West Boulder Trail (#41), which travels 16. 3 miles through meadows and timber to Mill Creek Pass with excellent scenic views.

An adjacent campground with 10 sites and a nearby rental cabin provide overnight accommodations for hikers and anglers accessing the West Boulder River.