The story of how nine skiers were killed, and six survived, in the deadliest avalanche in modern California history.

Stunning video shows a skier hanging off a ski lift in Big Bear as two others held her by her arms.

Satellite-based radar images show where a powerful earthquake in the Yukon, Canada, sent rock, snow, and ice spilling across ...

Hike north on the Appalachian Trail and the scenery slowly transforms. Rugged, steep ridgelines in Tennessee and Virginia soften into the broad summits and smooth peaks of Pennsylvania and New Jersey.

For 150 Years, Scientists Thought a Colorado River Flowed Uphill. The Real Explanation Is Even Wilder ...