COVID-19: At REI, we encourage you to get outside responsibly. Stay local, avoid recreational travel, practice social distancing and check ahead for area and facility closures. Learn More
Trail Run Project Logo

Red Box to San Gabriel Peak

Intermediate

Trail

3.9 mile 6.2 kilometer out and back
63% Runnable
Intermediate

Elevation

Ascent: 1,422' 433 m
Descent: -1,422' -433 m
High: 6,121' 1,866 m
Low: 4,755' 1,449 m

Grade

Avg Grade: 14% (8°)
Max Grade: 46% (25°)

Dogs

Leashed
Driving directions Take a virtual tour
Zoom in to see details
Map Key

A steep climb from Red Box Picnic area to San Gabriel Peak.

Tim Whalen

Features Views · Wildflowers · Wildlife

Adventure Pass required for parking at Red Box Trailhead but not at the Mount Disappointment Fire Road.

Overview

This route is a popular way to reach the summit of San Gabriel Peak. Though there are steep portions, you'll be rewarded with amazing views at the summit that make this well worth the effort.

Need to Know

The trail to the summit of San Gabriel Peak can be dangerous if there is snow or ice.

Description

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.

Flora & Fauna

Oaks and bigcone spruce provide shade along the trail. Manzanita and ceanothus are widely seen on sunny slopes.

History & Background

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.

Run this trail?

We need help with the following missing trail information:

Runner Notes

Is something wrong? Let us know. Have photos to share? Help fellow runners know what's here.

Contacts

Rate This Run

Rate Quality


   Clear Rating

Rate Difficulty

Share This Run

Check In

Check-Ins

none

Trail Ratings

  4.5 from 11 votes

#1045

Overall
  4.5 from 11 votes
5 Star
55%
4 Star
45%
3 Star
0%
2 Star
0%
1 Star
0%
Run Rankings

#166

in California

#1,045

Overall
79 Views Last Month
1,891 Since Feb 6, 2017
Intermediate

18%
45%
36%
0%

Photos

View from San Gabriel Peak
Dec 27, 2018 near Altadena, CA
Remnants of the Station Fire (2007)
Dec 27, 2018 near Altadena, CA
View of Mt. Baldy
Dec 27, 2018 near Altadena, CA
View from San Gabriel peak
Aug 5, 2018 near Altadena, CA
Our group checks out the view and the geocache at the top of San Gabriel Peak.
Feb 6, 2017 near Altadena, CA

0 Comments

Trail Run Project is part of the REI Co-op family,
where a life outdoors is a life well lived.

Shop REI Running