Chris Mendoza took this photo from up on Bear Mountain, with a sweeping view of the bowl-like Bear Valley below. The image ...
A study led by Colorado State University suggests that the answers to how and why mountains form are buried deeper than once thought. "Mountain building is a fundamental process of how Earth behaves,” ...
Stretching between the Black and Caspian Seas, the Caucasus Mountains in Kabardino-Balkaria, Russia, form a dramatic natural ...