The trail is open from the Friday before Memorial Day to September 24. Only the ATV trail is open December 20 through April 1. Inclement wet weather may necessitate closing of the trail so call ahead. Timberline ties into the Marienville ATV trail system. Trailhead parking is located on Forest Road 232, one mile south of SR 948 and SR 66 intersection.
Trail access is also available at public road crossing sites.
Riding surfaces are generally wide, permitting two-way travel, and utilizing old roads and railroad grades. Camping is available at the Twin Lakes Recreation Area. Camping is also permitted at the main trailhead parking area and along the trail provided trail access is not blocked.