‘Hike the Line’ follows hikers Tenny Ostrem and Claire Wernstedt-Lynch as they hike from California to the Gulf of Mexico.

A look at the 2014 Colorado River Pulse Flow, and the first crossing of the Colorado River Delta via watercraft in over two decades. It’s been more than 50 years since the river regularly reached the sea, but this year dam gates were opened for an experiement in ecological restoration.

Mountains were the cornerstone of Stephano's life. When a knee injury took this away from him he found solace in his offseason training activity, cycling.

A new generation of quirky outdoor brands like Skida and Pit Viper has found inspiration and community in the rolling hills of northeast Vermont.

“I got annihilated,” says Porcella

Lance Armstrong lost his grip on the yellow jersey in the ninth stage of the Tour de France Sunday, slipping into third place behind team CSC rival Jens Voigt—while Danish rider Mickael Rasmussen won the day after leading for over 100 miles. Jens Voight, who now has the yellow jersey.

Just because some people think these destinations are miserable doesn't mean they actually are.

In Episode 2 of Smith’s Great Days, professional climber Jonathan Siegrist sends a new route just outside of Las Vegas. After reaching the top of this challenging 5.14c first ascent, Siegrist named the route “Spectrum.”       …

I run on trails in the Virgin Islands because it's the only safe place to run, but I don't have trail running shoes. I have been tearing through shoes because they can't handle the rough terrain. What is the best warm-weather trail running shoes? Imagine a rocky gravel trail that gets muddy due to frequent tropical downpours. —Greg

To get a clear picture of where research is headed, you have to look beyond the easy headlines