Mount Harkness Trail is a 14.36-mile out-and-back foot trail in Lassen Volcanic National Park, California. It climbs 2,772 ft to a high point of 8,050 ft. Difficulty: very strenuous, from the NPS hiking-rating formula.
Open Mount Harkness Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Lassen Volcanic. Lassen Volcanic has permits or reservations for some areas: see the Lassen Volcanic page for what's needed.