The Herkenham Trail starts at its trailhead on the east side of Upper Red Rock Loop Road across from the high school and gradually descends to the southeast with good views of Courthouse Butte and Cathedral Rock. After crossing a wash at .75 miles, it levels out and ends at 1.1 miles at the Old Post Trail, .6 miles north of the trailhead on Chavez Ranch Road. Old Post and Ridge Trail may also be accessed from this trail.