March 17, 2013
Vermilion Cliffs National Monument
Photograph by Richard Barnes, National Geographic
The Wave is the most famous landform in Arizona's Vermilion Cliffs National Monument, a little-known 300,000 acres of rugged terrain. Flash floods carved this passage through petrified sand dunes, exposing the iron-rich bands.
See the Top 10 Underappreciated Parks >>
Travel 365. Explore the world, one incredible image at a time.