This challenging 17-mile loop hike from Switzer Falls Trailhead offers a mix of scenic canyon views, historic sites, and peaceful wilderness. Following the Gabrielino and Bear Canyon Trails through Arroyo Seco, the route leads deep into Bear Canyon, ascending to Mount Lowe Trail Camp before returning via Cloudburst Canyon.
Begin at the Switzer Falls Trailhead, off Angeles Crest Highway. The trail descends into the canyon, winding through shaded sections along the Arroyo Seco. Early in the hike, take a short out-and-back detour to the lower Switzer Falls before returning to the Gabrielino Trail.
Continue along the Gabrielino Trail as it parallels the creek, leading to the Bear Canyon Trail. Expect water crossings and lush canyon scenery while passing Bear Canyon Camp. During wet seasons, water crossings can be high, so proceed with caution and watch for poison oak in dense areas.
Follow the Bear Canyon Trail to reach Tom Sloan Saddle and continue toward Mount Lowe Road. Take the Mount Lowe Road to Mount Lowe Trail Camp, a first-come, first-served backcountry site. Continue to head northeast on the Mount Lowe Road toward the Red Box Picnic Area. There is an optional climb to Mount Lowe, though this is not included in the loop and would slightly increase mileage and elevation gain. Water is usually available at Red Box, but it’s advisable to call ahead to confirm conditions.
From Red Box, take the Gabrielino Trail, descending through Cloudburst Canyon and leading back to the Switzer Falls picnic area and trailhead.
FLORA AND FAUNA
Expect to see oak, sycamore, and alder trees in shaded canyon areas. Wildflowers such as lupine and California poppies bloom seasonally. Wildlife includes deer, squirrels, lizards, and the occasional black bear. Be aware of potential encounters with rattlesnakes in warmer months and watch out for poison oak, which can be found along many sections of the trail.
MOUNT LOWE TRAIL CAMP
The campsite is well-maintained with picnic tables, fire pits (subject to fire restrictions), and plenty of flat areas for tents. Water sources are typically unavailable, so be sure to bring enough for your trip.
PARKING
Parking is available at the Switzer Falls Picnic Area. Since this trail is popular, especially on weekends, the lot fills up quickly. If it's full, overflow parking is available along Angeles Crest Highway. A valid Adventure Pass or Interagency Pass is required to park here.
CAMPING AND PERMITS
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Bear Canyon Camp and Mount Lowe Trail Camp are first-come, first-served.
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California Campfire Permit may be required (check with local ranger district).
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It’s advisable to check water availability and any seasonal restrictions in advance, as conditions can vary throughout the year
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