The deep roots of Earth's oldest continents have long been thought to be unshakable. But a new seismic discovery suggests that even these stable landmasses can change. Beneath the center of North ...

Despite being tied together beneath the surface, these regions diverge sharply above it. Iceland and the Azores are ...

Skiing along the Continental Divide at the top of Monarch Mountain at 11,952 feet, mountain operations assistant director Zach Moore points out the 377-acre stretch of fresh, steep terrain that will ...