Cathedral Rock, Sedona, Arizona.
Cathedral Rock, Sedona, Arizona.
Wahweap Hoodoos.
Moonrise, Fisher Towers, Utah.
Toadstools, Utah.
Toadstools, Utah.
Toadstools, Utah.
Kodachrome Basin State Park, Utah.
Carlsbad Caverns National Park.
Hot springs, Sierra Nevada, California.
Pouroff, Waterholes Canyon, Arizona.
Moeraki Rocks, South Island, New Zealand.
White Pocket, Vermillion Cliffs, Arizona.
White Pocket, Vermillion Cliffs, Arizona.
White Pocket, Vermillion Cliffs, Arizona
White Pocket, Vermillion Cliffs, Arizona.
Fremont rock art, Utah.
Rock art, Red Tank Wash, Arizona.
Rock art, Red Tank Wash, Arizona.
Rock art, Rarick Canyon, Arizona.
Natural rock art. Agua Fria National Monument, Arizona.
Natural rock art, southern Utah.