A rare weather phenomenon is making the grand canyon even more spectacular. A park ranger at the Grand Canyon National Park took these photos of a blanket of clouds shrouding the canyon, essentially making it disappear.
It's called a total cloud inversion, and it happens when warm air above keeps the clouds closer to the ground. Much like if you were to hold your hand above a helium balloon to keep it from rising.
A full cloud inversion is rare and usually only happens about once a decade.