Hiking: Thunder Mountain, Telegraph Peak & Timber Mountain via Three Tees Trail

The Three Tees Trail leads over Thunder Mountain, Telegraph Peak, and Timber Mountain, with views of Mount San Gorgonio, Mount San Jacinto, Mount Baldy, and the Mojave Desert. Popular trailheads include Icehouse Canyon and Mount Baldy Notch.

This hike starts at Mount Baldy Notch (top of chair #1). Initially the trail follows the ski run to the summit of Thunder Mountain (top of chair #3). Then it descends Thunder Mountain with view of San Antonio Canyon, before climbing Telegraph Peak. A short out-and-back section leads to the summit. Then the trail descends Telegraph Peak with view of Icehouse Canyon, before climbing Timber Mountain, the turnaround point.