Follow Old Bunsen Peak Road through grassland and burned forest 3 miles (4.9 km) to Osprey Falls Trail. Descend 700 feet (213 m) into Sheepeater Canyon, one of the deepest canyons in Yellowstone National Park. Osprey Falls, on the Gardner River, plunges 150 feet (46 m) over the edge of a lava flow. Return by the same route.
Safety notes: Grizzly bears frequent this area. Follow Old Bunsen Peak Road for 3 miles (4.9 km) to Osprey Falls Trail. Hiking and biking allowed on Old Bunsen Peak Road. No bikes allowed on Osprey Falls Trail.
Trailhead: 5 miles (8 km) south of Mammoth on the Grand Loop Road. Park in the gravel lot just south of Golden Gate, across from the Glen Creek trailhead.
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Last updated: June 6, 2018