Andy Valdez

Tucked into the San Gabriel Mountains above the small mountain town of Wrightwood, California, the Acorn Trail to Pine Mountain is one of the most demanding day hikes in Angeles National Forest. The route gains nearly 3,900 feet in under 5 miles one-way — a relentless, sustained climb that rewards the effort with Pacific Crest Trail ridgeline, sweeping views of the high desert and Mojave below,...

The Three T's Trail is one of the most ambitious day hikes in Southern California — a 15.7-mile loop that summits three named peaks in the Mt. Baldy area of Angeles National Forest while gaining over 5,000 vertical feet. The "Three T's" refer to Telegraph Peak (8,985 ft), Thunder Mountain (8,587 ft), and Timber Mountain (8,303 ft) — three sub-peaks of the San Gabriel Mountains' high country, al...