3 min
Overview
The hike to Henninger Flats is a relatively moderate, non-technical climb up single-track trail and historic fire roads that is popular with hikers, equestrians, and mountain bikers alike — and for good reason. This route is in the front range of the San Gabriel Mountains, close to Altadena and Pasadena. It’s near the popular Eaton Canyon Falls (and the excellent nature center at Eaton Canyon), and is also one of the closest developed campgrounds to the Los Angeles region. With colorful history, a visitor center at the end of the trail, and unique campground views overlooking the Los Angeles basin, Henninger Flats is most definitely a trail that every hiker in L.A. should tackle at least once. This route starts out from the Eaton Canyon Nature Center, where there is a fee to park (and limits on parking time — 9AM to 5PM). However, you can also park on Altadena Drive outside the entrance to the Nature Center. A popular alternative trailhead for Henninger Flats and for Eaton Canyon Falls is north of the center, off Pinecrest Drive — but I prefer the route from Eaton Canyon because the distance is about the same, and the route as described here spends less time on the Mount Wilson Toll Road in more interesting terrain. Henninger Flats looms above Eaton Canyon From the parking area in Eaton Canyon, you’ll be able to spot Henninger Flats almost immediately, far above the wide basin. Look for a stretch of unusually dense forest — much lower than you’d expect to see pine trees. That’s your destination. Begin by following the trail toward Eaton Canyon Falls. Keep a left at 0.4 mile, and at 0.6 mile, take a right to turn onto the Walnut Canyon Trail. If there were any crowds on the lower portion of the trail, you’re likely to leave them behind here. The Walnut Canyon Trail is a short, narrow trail that climbs up toward the Old Mount Wilson Toll Road in a series of tight switchbacks through dense sage scrub. As the trail gains elevation, you’ll get better views of the front range of the San Gabriel Mountains as well as s
Trail Stats
9.6 km
473 m
770 m
298 m
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