Glen Aulin - May Lake Trail is a 12.6-mile out-and-back foot trail in Yosemite National Park, California. It climbs 750 ft to a high point of 9,369 ft. Difficulty: strenuous, from the NPS hiking-rating formula.

Glen Aulin
12.6 miles (20.3 km) round trip
Read the official NPS description
Open Glen Aulin - May Lake Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Yosemite. Yosemite has permits or reservations for some areas: see the Yosemite page for what's needed.