Max King writes about how to get started in the challenging (and fun) racing discipline.
The 7-minute film follows a Spanish runner as he tackles 100 miles.
A trail marathon with unparalleled scenery in the off-road utopia of Moab, Utah.
Untouched wilderness explored by singletrack in New York.
Fascinating new science out of Stanford University shows trail running can literally change your brain.
A foothills experience not far from Denver.
A gently sloping, beautiful trail in Montana wilderness.
Mammoth Cave in Kentucky has beauty above-ground, too
The race served as the finale of the 2015 U.S. Skyrunner Series.
Some gorgeous views of the picturesque Lake Tahoe.