Alta Peak is a roughly 13.8-mile out-and-back foot trail in Sequoia National Park, California. Difficulty: strenuous, from Trailbound's popular-hike list. That is the full hike: the mapped trail line covers only 3.82 mi of it, so don't plan from the map line alone.
Open Alta Peak on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Sequoia. Sequoia has permits or reservations for some areas: see the Sequoia page for what's needed.