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Rafters above their boats on the Colorado River through the Grand Canyon, Arizona, United States of America, North America

Grand Canyon northwest view from a rock island just beyond the tourist overlook of Lipan Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

An adult common side-blotched lizard (Uta stansburiana), on the rocks in Grand Canyon National Park, Arizona, United States of America, North America

Night photography at South Canyon, just before river mile 32, Grand Canyon National Park, Arizona, United States of America, North America

Scenic view of Grand Canyon from Ooh Aah Point on South Kaibab Trail, Grand Canyon National Park, Arizona, USA

A field of hoodoos along the Red Basin Trail in Petrified Forest National Park Arizona called Pharaoh's Garden.

Hearst Hill viewed from across Hance Canyon on the South Rim of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Hoover Dam on the Colorado River forming the border between Arizona and Nevada, United States of America, North America

Sandstone formations, White Pockets, Paria Plateau, Northern Arizona, United States of America, North America

Eroded curves in sandstone, Upper Antelope Canyon, near Page, Arizona, United States of America, North America

Ferruginous Hawk (Buteo regalis) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Ancient Indian Ruins under Fay Arch in Fay Canyon in Sedona, Arizona, United States of America, North America

Uncle Jim Point viewed from Bright Angel Point on the North Rim of Grand Canyon at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

View of Brady Peak from the Vista Encantada Picnic area on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone formations, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Giant saguaro cactus (Carnegiea gigantea), under full moon in the Catalina Mountains, Tucson, Arizona, United States of America, North America

A young red-tailed hawk (Buteo jamaicensis), on a sign near Whitewater Draw, Coronado National Forest, Arizona, United States of America, North America

An adult male acorn woodpecker (Melanerpes formicivorous), Madera Canyon, southern Arizona, Arizona, United States of America, North America

View of vintage station wagon and Mr D'z Diner on Route 66 in Kingman, Arizona, United States of America, North America

Sky Walk over the Grand Canyon and Colorado River, UNESCO World Heritage Site, Arizona, United States of America, North America

West Rim, Grand Canyon and Colorado River, UNESCO World Heritage Site, Arizona, United States of America, North America

Panorama of a ridge in the Devil's Playground of crumbling hoodoos, Petrified Forest National Park, Arizona, United States of America, North America

View from Cape Royal at sunrise, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

View from Cape Royal, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon viewed from the cliffs west of Moran Point with Coronado Butte on the far left, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon viewed before sunset, west of Papago Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

An adult female bighorn sheep (Ovis canadensis nelsoni), in a cave for shade in Grand Canyon National Park, Arizona, United States of America, North America

Commercial rafters run the Deubendorff Rapid, just past river mile 132, Grand Canyon National Park, Arizona, United States of America, North America

A giant petrified log balanced on a sandstone pedestal in Petrified Forest National Park Arizona along the Red Basin Trail.

View from below the cliffs of the spur canyon just north of the main overlook of Horseshoe Bend, Arizona, United States of America, North America

Colorado River dividing California and Arizona, near Parker, Arizona, United States of America, North America

One of the few petrified trees almost intact, The Onyx Bridge in Petrified Forest National Park, Arizona, United States of America, North America

The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America

Red rock formations at sunrise, Coconino National Forest, Arizona, United States of America, North America

The Transept Trail sign where it branches off from the Bright Angel Point Trail on the North Rim of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A bench overlooking Grand Canyon North Rim from the Vista Encantada Picnic area, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone formations with clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Pink clouds over sandstone formations, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Dead branch and sandstone formations with clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

View of Hermit Canyon and Hermit Basin from the Boucher Trail at Grand Canyon with Pima Point on the upper left, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Saguaro cactus (Carnegiea gigantea), photographed at night in the Sweetwater Preserve, Tucson, Arizona, United States of America, North America

A grove of trembling aspens (Populus tremuloides), in fall coloration near Snowbowl, Flagstaff, Arizona, United States of America, North America

An adult female acorn woodpecker (Melanerpes formicivorous), Madera Canyon, southern Arizona, Arizona, United States of America, North America

An adult male broad-billed hummingbird (Cynanthus latirostris magicus), Madera Canyon, southern Arizona, Arizona, United States of America, North America

Thunderstorms over south rim, from Cape Royal, north rim, Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Ancestral Puebloan ruin at Desert View on the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A valley in Petrified Forest National Park, west of the Tepees, Arizona, United States of America, North America

An adult female Costa's hummingbird (Calypte costae) feeding in Madera Canyon, southern Arizona, Arizona, United States of America, North America

Night photography at Blacktail Canyon, just before river mile 121, Grand Canyon National Park, Arizona, United States of America, North America

An adult male desert spiny lizard (Sceloporus magister), under a ledge in Grand Canyon National Park, Arizona, United States of America, North America

View of the salty bentonite hills on the north side of the Blue Forest in Petrified Forest National Park Arizona.

East view of Canyon De Chelly National Monument North Rim from Antelope House Overlook, left fork leads to Many Cherry Canyon, right fork to Black Rock Canyon, Arizona, United States of America, North America

Wild flowers in bloom after a particularly good rainy season at Picacho Peak State Park, Arizona, United States of America, North America

Round-tailed ground squirrels (Xerospermophilus tereticaudus), Brandi Fenton Park, Tucson, Arizona, United States of America, North America

Grand Canyon viewed through a rock cave below Lipan Point on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone formation, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Hoover Dam on the Colorado River forming the border between Arizona and Nevada, United States of America, North America

Dawn over Left and Right Mittens, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

Car against cloud at sunrise, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America

View of Fay Canyon in Sedona from the end of the trail, Arizona, United States of America, North America

Jupiter Temple, a ridge on the east side of the North Rim, viewed from Cape Final, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

An adult male broad-billed hummingbird (Cynanthus latirostris magicus), Madera Canyon, southern Arizona, Arizona, United States of America, North America

Sunset over Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

Afternoon view from the Spectator Area on Mingus Mountain near Jerome, Arizona, United States of America, North America

A valley in Petrified Forest National Park, west of the Tepees, Arizona, United States of America, North America

A view of the upper Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Ancient Indian Ruins on the north side of Cockscomb Butte in Sedona, Arizona, United States of America, North America

An area of the Red Basin in Petrified Forest National Park Arizona where the purple bentonite transitions into red for which the basin is named.

Ancient Indian ruins on a small rock island just left of center along the Palisades of the Desert at Grand Canyon Arizona.

Glen Canyon Dam viewed from main overlook just south of dam, Page, Arizona, United States of America, North America

Betatakin Canyon, Navajo National Monument, inside the Navajo Indian Reservation northwest of the town of Kayenta, Arizona, United States of America, North America

Round-tailed ground squirrel (Xerospermophilus tereticaudus), Brandi Fenton Park, Tucson, Arizona, United States of America, North America

A pair of sandstone hoodoos at Ferry Swale in the Glen Canyon Recreation Area near Page, Arizona, United States of America, North America

The safety railed stone cliff of the Mohave Point Overlook, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Ancient Indian petroglyphs along the Onyx Trail at Petrified Forest National Park, Arizona, United States of America, North America

Sandstone cones at first light, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Grand Canyon view from Moran Point on a cloudy day with the clouds floating inside the canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Zuni Point at Grand Canyon South Rim in the clouds viewed from Moran Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Colorado River dividing California and Arizona, near Parker, Arizona, United States of America, North America