A Flagstaff-based hub for regional science -- and for the protection of the Grand Canyon and the Colorado River -- could be ...

Millions of tons of debris collapsed off Sheep Mountain in Teton County into the Gros Ventre River 100 years ago, creating a ...

Hells Canyon, the deepest river gorge in the country, has always been a marvel for geologists, archeologists and travelers. But researchers are just now learning about the origins of the canyon ...

A picturesque Swiss village has been nearly entirely destroyed by a collapsing glacier, leaving one person missing amid a deluge of ice, mud and rock ... of significant flooding which could ...

Hells Canyon, which is on the border between Oregon and Idaho, is almost 8,000 feet deep. That makes it far deeper than the famous Grand Canyon of Arizona, which reaches a depth of about 6,000 ...

Critics argue that failing to flood the Grand Canyon on a regular basis causes its beaches to wash away and has a devastating impact on its wildlife. The Bureau of Reclamation has said it will not ...

Federal officials have rejected a plan to release floodwaters from Lake Powell to restore Grand Canyon beaches this spring, frustrating river advocates who question the government’s commitment ...

In this video, I use primitive tools and techniques to make 100 mud bricks for building house ... ‘I didn’t see him as a victim’ Grand Canyon flooding move sparks backlash: 'We are failing ...