Today, I spend most of my time climbing in national parks – places like Yosemite Valley ... or world record holder climbing some of the highest peaks, Dr. Vaill says you can accomplish anything ...

Americans often refer to the Nangma Valley as “the Yosemite of Pakistan.” It’s an appropriate moniker considering the majesty ...

These five places in California's wilderness are jaw-droppingly beautiful but stealthily treacherous, taking the lives of explorers and rescuers alike.