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 ...
That’s according to a new study that looked at ancient river sediments that have long been hidden away inside the canyon’s caves, which now lie high above today’s Snake River. This new work is ...
It's a warm, dry June afternoon as 13 students, a biologist and I stand on the edge of the deepest river gorge in North America, Hells Canyon, and stare in. The students are silent. Awestruck. The ...