Vermilion Cliffs National Monument, AZ / Petrified sand dunes at sunset eroded into delicate and bizarre formations. 605H2
Vermilion Cliffs National Monument, AZ / Paria Canyon's Navajo Sandstone canyon walls with mud patterns indicating former river channel. 406V5
Vermilion Cliffs National Monument, AZ / Paria Canyon Navajo Sandstone canyon walls eroded and sculpted by Paria River floods. 406H5
