Mt. Waterman is perhaps best known as a skiing destination, but it’s also popular among hikers. The route from Buckhorn is a scenic, moderately challenging hike that includes views of the high desert, the Los Angeles basin, and if the weather is clear, San Jacinto and the ocean.
From the road, look for a gray metal sign and a trail beyond it. Head uphill, paralleling the road for the first half mile or so. You cross a dirt service road and continue working your way along a north-facing ridge.
After about a mile, you reach a sharp turn to the right. You pass by the upper end of a ski lift,and a clearing where you get nice views to the southeast. The trail continues its moderate ascent through a forest of pines, cedars and firs. You make a few switchbacks and come to a junction (2 miles.) Head right on the trail signed for the summit; it says 3/4 of a mile but it’s closer to a full mile.
You ascend to a ridge line, where you get a glimpse of the high desert across the mountains. After half a mile, you reach a saddle and descend briefly. Look for an unsigned trail branching up to the left, heading uphill. A short but steep ascent brings you to Waterman’s summit.
The summit is flat, with three groups of boulders representing the high points. The easternmost is the first one at which you arrive, and it provides the best views. You can see Mt. Baldy its neighbors to the east; Old Saddleback to the suoth, and more. The trail continues toward the middle rock pile, which is the tallest, and the westernmost, on which the summit marker and register can be found. The trees somewhat obscure the views, but you can still get nice vistas to the south and west, including Mt. Wilson, the Hollywood Hills, and more. None of the rock piles are particularly difficult to climb, but caution should still be taken. When you’re done enjoying the view, retrace your steps to Buckhorn, or, if you’ve arranged a shuttle, you can continue west from the junction to the Mt. Waterman Trail. You can also do it as a loop hike by returning on the service road, as described here.