25K Runners will leave the Starting Line and run down Mt. Wilson Road to Eaton Saddle gate (2.4 miles). All runners will follow dirt road through the old Mueller Tunnel. A few hundred yards after exiting the tunnel, runners will "go right" up the Upper San Gabriel Peak Trail going past San Gabriel Peak (6000 ft) and continue to the paved road. All Runners follow along the paved road in front of Mt. Disappointment and "go right" onto the Lower San Gabriel Peak Trail (Bill Reilly Trail). All Runners follow Bill Reilly Trail to Mt. Wilson Road, then "go left and downhill" to the Red Box Aid Station #1 (mile 5.5). 25K Runners leave Red Box Aid Station on the tree-covered Red Box / Westfork Fire Road all the way to the West Fork Aid Station (mile 10.8). Upon leaving Westfork, all 25K runners take the Gabrielino Trail going west to the base of the Kenyon Devore Trail. The final climb up Kenyon Devore Trail, which offers spectacular views (ascending 1910 feet in 3.1 miles) up to the Mt. Wilson Summit 25K Finish (mile 15.5 with 12:00 p.m. cut-off).