The literature put out by River Odysseys West assures that there are no mosquitoes in Hells Canyon. It`s true-at least it was in June when I was there. We never even saw one. However, there are tin… ...

However, as revealed by new research, Hells Canyon is relatively young. In a new study, geologists reveal evidence that the river gorge was rapidly carved just a couple of million years ago.

North America's deepest gorge, Hells Canyon, which slithers along the border of Idaho and Oregon, is a surprisingly new addition to the Earth's ancient landscape. A recent study suggests that a ...