Mystery Trail is a hiking trail in San Francisco, California. It is within Mount Sutro Open Space Reserve. It is 0.1 miles long and begins at 826 feet altitude. Traveling the entire trail is 0.2 miles with a total elevation gain of 103 feet. The Globaltap drinking water is near the trailhead. There is also parking. The trail ends near Mount Sutro (elevation 912 feet). There is also a bench near the end of the trail.