Mount Lewis

The hike from Mount Islip to Mount Lewis is a 14-mile out-and-back journey along the scenic backbone of the San Gabriel Mountains. Starting from the Mount Islip Trailhead at Islip Saddle, this hike offers sweeping views, serene forests, and the opportunity to do some peak bagging. The majority of the route is along well-maintained singletrack and provides a great escape from the hustle and bustle of Los Angeles, making it a perfect day hike for those looking to explore the high country of the Angeles National Forest.

TRAILHEAD
The trailhead is located at Islip Saddle, a well-marked parking area located off of Highway 2.  along the highway. Be sure to display an Adventure Pass, required for parking in the Angeles National Forest. Trailhead amenities include a picnic table, bathroom, and garbage cans. 

DESCRIPTION
The route begins at Islip Saddle, following the Pacific Crest Trail (PCT) northbound. The PCT trailhead is located on the opposite side of Highway 2 from the parking area. The trail starts with a series of switchbacks through what is now a burn area. Despite the wildfire devastation, there is still beauty to be found, including wildflowers along the trail. However, be cautious of Poodle Dog Bush—a fragrant plant that is common after fires and can irritate the skin if touched.

You’ll hike through a shaded forest of Jeffrey pines and white firs, with sections along the ridgeline where the trail opens up, revealing scenic views of the Mojave Desert to the northeast and the Los Angeles Basin to the southwest.

The PCT continues with a steady ascent along the ridge. Just below Throop Peak, you'll reach a junction and turn onto the Dawson Saddle Trail, descending toward Highway 2. After crossing the highway, continue onto the Mount Lewis Trail. The distance from the road to the peak is short, but this section of the route is unmaintained, steep, and rugged.

Mount Lewis, sitting at about 8,396 feet, is one of the peaks on the Sierra Club’s Hundred Peaks Section List. Enjoy the views and the tranquility at the summit, which is a perfect spot to take a break, have a snack, and appreciate the solitude of this lesser-known peak.

When you’re ready to head back, simply retrace your steps along the same trail.