Color contrast at Upper Antelope Canyon

Known as “The place where water runs through rocks” by the Navajo Nation, Antelope Canyon is almost invisible from the surface. This slot canyon was formed by the erosion of the Navajo red sandstone due to intense flash flooding over the course of millions of years. And when it's not water carving the narrow walls, the windblown sand polishes them into this incredible striated, swirling finish.