To find out how the gorge formed, the team examined caves along the side of the canyon. When floods cause rivers to swell, ...

Or the devilish yet gorgeous Hells Canyon, a forbidding and remote wilderness adventure ... whose landscape is carved by the equally diabolical-sounding Snake River. Add Utah's Desolation Canyon ...

"The Hells Canyon, despite being a deeper canyon, has not really attracted as much modern scientific interest," says Matthew Morriss, a geologist with the Utah Geological Survey. He personally ...

“The Hells Canyon, despite being a deeper canyon, has not really attracted as much modern scientific interest,” says Matthew Morriss, a geologist with the Utah Geological Survey. He personally ...

"The Hells Canyon, despite being a deeper canyon, has not really attracted as much modern scientific interest," says Matthew Morriss, a geologist with the Utah Geological Survey. He personally became ...

Hells Canyon, the deepest river gorge in the United States, likely got rapidly carved 2.1 million years ago when a shifting landscape in Idaho caused a giant lake to start overflowing. That's ...