geology
Hells Canyon, the deepest gorge in the U.S., is surprisingly young
Hells Canyon is the deepest river canyon in the United States. Now scientists have solved the mystery of when it formed.
Red Mountain Cut features time capsule of Alabama’s robust geologic history
A national natural landmark, the road cut along Birmingham's Red Mountain Expressway documents more than a hundred million years of geologic history and was once an educational centerpiece.
