Follow Blacktail Deer Creek as it descends 1,100 feet (335 m) through rolling, grassy hills and Douglas-fir forest to a suspension bridge over the Yellowstone River. Return the same way.
Safety notes: Trail frequented by horseback-riders.
Trailhead: 7 miles (11.3 km) east of Mammoth on the Grand Loop Road.
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Last updated: June 6, 2018