These trail races in scenic places feature waterfalls, mountains, forests, and wide-open spaces. One even has ponies!

Meet Jellybean, a 9-pound chihuahua-dachshund mix. She's run seven marathons and two ultras with her owner, and these are a few of their favorite races.

The controversial American distance runner beat the first male finisher by seven minutes and set a new women’s course record ...

Trail running has surged in popularity, with more people swapping pavements for rocky paths, forest trails and steep mountain ...

Although summer began last week, Race Breck’s Summit Trail running series is now more than halfway through its slate of five races. A week after rain pelted cyclists as they rode on the trails that ...