Near Island Park in the Caribou - Targhee National Forest, the Railroad Right-Of-Way Trail is a 23 mile route open to ATV riding.
The best place to start is the Bear Gulch / Mesa Falls Trailhead. There is a large paved parking area with restrooms.
Parking for the Bear Gulch-Mesa Falls Trail system is located at the end of the plowed section of the Mesa Falls Scenic Byway (route 47), 12 miles northeast of Ashton, Idaho, near the old Bear Gulch alpine ski area.
Note: As of September 2007, ATV riding on Forest Service roads is permitted only on designated routes. All ATVs must have a valid registration.
Overall, Railroad Right-Of-Way Trail is the 4th most popular ATV riding trail of all 55 ATV trails in Idaho.