Jennifer Morlock, owner of Dakota Cyclery Mountain Bike Adventures, rides down a steep part of Devils Pass on the Maah Daah Hey Trail near Medora, N.D.
Jennifer Morlock, owner of Dakota Cyclery Mountain Bike Adventures, rides down a steep part of Devils Pass on the Maah Daah Hey Trail near Medora, N.D. Janie Osborne NYT
Jennifer Morlock, owner of Dakota Cyclery Mountain Bike Adventures, rides down a steep part of Devils Pass on the Maah Daah Hey Trail near Medora, N.D. Janie Osborne NYT

This mountain biking trail is arguably the most grueling in the U.S.

September 18, 2016 03:09 PM