Photo By/Credit
Michael Melford/National Geographic SocietyDate Shot/Created
03/27/2023Media Usage Rights/License
Copyrighted, All Rights Reserved - Used by Permission
Image
“During the ice-age floods, this entire scene was submerged beneath hundreds of feet of water,” says geologist Bruce Bjornstad. The Palouse River, shown here, "was hijacked and forced to follow a new route to the Snake River.”