Vermilion Cliffs National Monument, AZ / Petrified sand dunes eroded and shaped by the elements are reflected in the pot holes filled with rain water at dawn with the cliffs of Utah in background. 105H6

Vermilion Cliffs National Monument, AZ / Petrified sand dunes forming white formations of polygonal joints with isolated Pinyon pines, Pinus edulis, under a stormy sky in afternoon light. 405H6

Vermilion Cliffs National Monument, AZ / Petrified sand dunes at sunset eroded into delicate and bizarre formations. 605H2