Ralston Peak is a mountain in the Sierra Nevada mountain range to the west of Lake Tahoe within the Desolation Wilderness in El Dorado County, California. Ralston Peak is a very popular mountain to summit for the views of the wilderness area as it lies very near U.S. Route 50. The closest trailhead to the summit can be found in Camp Sacramento a few miles west of Echo Summit. Ralston Peak can also be accessed from the Pacific Crest Trail between Echo Lake and Lake Aloha. Starting at the nearest trailhead (Echo Lake), this route is significantly longer than the trail from Camp Sacramento. But the altitude gain on this route is much less, and the trail is much less steep.