[citation needed] Travelling westbound, the trail winds its way from Chantry Flat, through Big Santa Anita Canyon past Sturtevant Falls and Sturtevant's Camp, then over Newcomb's Pass into the West Fork of the San Gabriel River.

It is across the stream from West Fork Campground that the Silver Moccasin Trail heads up Shortcut Canyon for the San Gabriel High Country.

[citation needed] From Red Box, the Gabrielino continues westward down the Arroyo Seco through Commodore Switzer Trail Camp, Oakwilde and Gould Mesa Campgrounds, and emerges from The Arroyo at the Jet Propulsion Laboratory.

The entire route of the trail was declared open in a press release by the Forest Service August 27, 2018[1] Due to the 2009 Station Fire, part of the Gabrielino was closed by the USFS including the portion of the trail between Switzer down to the Arroyo Seco.

Wilson Bicycling Association (MWBA) and CORBA, the reopening of the trail was announced August 27, 2018.