The Vikos Gorge, a wonder of the natural world in Greece, is known as the "Greek Grand Canyon" because of its cliffs and ...

The origin story of Hells Canyon, North America's deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event ...

The Royal Gorge's steep walls tower 1,250 feet above the Arkansas River. Photo courtesy of Terri Cook and Lon Abbott The Local newsletter is your free, daily guide to life in Colorado. For locals, by ...

Thousands of years ago, the mighty Snake River and its tributaries carved their way through Southern Idaho, leaving behind ...