Red Box to San Gabriel Peak

From Red Box on Angeles Crest Highway, turn onto Mt. Wilson-Red Box Road for 0.2 miles then turn right at a junction with paved Mount Disappointment Road #2N57 (unsigned). There are a limited number of parking spots near the gate 100' from the junction and more down near the intersection. Proceed up the road past the gate and turn left onto the Bill Reilly Trail. Follow this well-shaded trail through an enchanting oak forest rejoining back with the Mount Disappointment Fire Road at 1.2 miles.Turn left onto the paved road and continue for about 0.2 miles to where the road makes a sharp bend. The road goes up to the Mt. Disappointment electronic site. Continue going straight east passing the foundation of an old Nike missile site then onto a dirt trail where there is a junction with the San Gabriel Peak Trail #12W24. Turn left and follow the trail to the summit. You'll be rewarded with a spectacular view of Mount Baldy. You'll also find a bench and geocache box. You are also looking down at the Mount Wilson Observatory.

There was a fire lookout on top of San Gabriel Peak but it was removed in 1937. The Nike missile site on Mt. Disappointment was decommissioned in 1965.