Near Elk City in the Nez Perce National Forest, the McComas ATV Trails is a 20 mile trail network that combines trails #421, #422 and #1847. There are eight trailheads that serve the trail system. The trails follow old logging roads and old fire roads that are closed to vehicular traffic. The trails are maintained by the High Mountain Trail Machine Association.
To reach the trailhead from the intersection of American River Rd. and SR 14 in Elk City, go west on SR 14 for 27 miles. Turn right (north) on NFD 469 (Peasley Creek Rd.) and travel 4 miles. Take a left on Medicine Creek Rd. and go 3 miles. The trail is on the right side of the road.
Note: As of September 2007, ATV riding is only permitted on designated Forest Service roads. Each road is marked to indicate usage.
Overall, McComas ATV Trails is the 46th most popular ATV riding trail of all 55 ATV trails in Idaho.