Gabrielino Trail, National Recreation Trail in the San Gabriel Mountains, Los Angeles County, California, US

The Gabrielino Trail is a 28.5-mile (45 km) National Recreation Trail running east-west through Angeles National Forest, from Windsor Avenue in Altadena to Chantry Flat north of Arcadia. It crosses three major watersheds and gains or loses about 3,500 ft (1,100 m), reaching its highest point at Red Box Saddle near Mount Wilson.

The trail was designated as a National Recreation Trail in 1970 to connect urban residents with the natural environment of Angeles National Forest. This recognition protected the historic route and made it accessible to modern visitors seeking mountain access.

The trail's name honours the Gabrielino, the Tongva people of the Los Angeles basin, though the route itself was assembled in 1970 from renamed existing paths rather than an old native road. The Forest Service announcement that year addressed "the city dweller", inviting Angelenos to trade urban life for the forest. Today the trail is shared by hikers and mountain bikers, and volunteer crews such as the Mt. Wilson Bicycling Association helped reopen sections after the 2009 Station Fire.

You can access the trail at several points, especially around Switzer or Chantry Flat, which serve as good starting points for hikes of different lengths. Water sources are available at certain rest areas, so check your planned route beforehand.

The Gabrielino Trail's highest point is Red Box Saddle near Mount Wilson, where it meets the head of the West Fork. From there it descends the Arroyo Seco past Commodore Switzer Trail Camp, Oakwilde and Gould Mesa Campgrounds, emerging at the Jet Propulsion Laboratory. The route was declared fully open again on August 27, 2018, after closures caused by the 2009 Station Fire.