For Karen Hanke, trails are for both training and inspiration for her job as a children’s book illustrator.
Scenes from the Tamalpa Headlands 50K that took place on Aug. 28 near San Francisco.
Ultrarunner Joe Grant has set a new self-supported record for biking to and running up all 57 of Colorado's 14,000-foot peaks.
A look at how this 27-year-old Nike Trail Elite runner lives and trains in a cabin in the woods halfway up Colorado's Pikes Peak.
The ultra-running legend known as "Speedgoat" is fighting to stay on pace.
The 30-year-old trail runner ran up and down the 14,115-foot mountain four times and accumulated 100 miles of running.
Inspiring images from Ethiopia's Rift Valley.
How to plan your own epic adventure run and why.
Fun running in a beautiful setting and a “work vacation,” that’s what brought me to Mammoth Lakes, Calif. for Deena Kastor’s third
Turquoise lakes, kaleidoscopic wildflowers, bursting waterfalls, plush singletrack trails and endless alpine vistas.