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Shooting the rapids in a raft on the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A ridge in the Devil's Playground of crumbling hoodoos that resemble Goblins, Petrified Forest National Park, 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

Grandview Point viewed from the port bow of the formation called Sinking Ship, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The Bow Rock of the formation called Sinking Ship in 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

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

View of Lipan Point on the right from Pinal Point at Grand Canyon, with The Desert View Watchtower in the distance, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The North Fork Abyss of the Lower Soap Creek Canyon joining the confluence of the South Fork in Marble Canyon, Arizona, United States of America, North America

Grand Canyon viewed from No Name Point halfway between Lipan Point and Pinal Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A slot canyon along Cathedral Wash in Glen Canyon Recreation Area, 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

A view of the upper Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, 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

Night photography at Schist, just before river mile 97, Grand Canyon National Park, Arizona, United States of America, North America

The haunted Massacre House Ruins in Canyon del Muerto (Canyon of the Dead), on the north end of Canyon De Chelly, site of a Navajo massacre by Spanish Soldiers in 1825, Arizona, United States of America, North America

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

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

The east rocks of the New Wave along the Beehive Trail in the Glen Canyon Recreation Area near Page, Arizona, United States of America, North America

The Grand Canyon in winter, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), 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

Eroded curves in sandstone, Upper Antelope Canyon, near Page, 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

Red rock formations at sunrise, Coconino National Forest, 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

Male ladder-backed woodpecker (Picoides scalaris), The Pond, Amado, Arizona, United States of America, North America

View of Grand Canyon from the south cliffs of Cape Final on the North Rim with Unkar Creek below and right of centre the pointed peak of Freya's Castle, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Junction sign for the trails leading to Angels Window and Cape Royal at Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Wooden sign marking the way to Roosevelt Point on the North Rim of Grand Canyon, Arizona, United States of America, North America

Closeup of Angel's Window at Cape Royal on North Rim above Unker Creek near sundown, with brown haze on the horizon smoke from a wildfire near the park, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Bright Angel Point Bridge on Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sign for the main visitor center at Grand Canyon North, 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 with clouds, 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

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

Hermit Canyon at Grand Canyon viewed from the east side of Yuma Point along the Boucher Trail with Pima Point on the upper right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Organ pipe cactus (Stenocereus thurberi), at night in Organ Pipe Cactus National Monument, Sonoran Desert, 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

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

Panorama of the south side of Johnson Point from below its cliffs at Marble Canyon, Glen Canyon Recreation Area, Arizona, United States of America, North America

Wotans Throne in moonlight, Grand Canyon North Rim, Grand Canyon, Arizona, United States of America, North America

View of Glen Canyon Recreation Area from the middle of Lees Ferry Road at Marble Canyon, 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

Reflections of Courthouse Butte in water puddles on its east side, located in Sedona, Arizona, United States of America, North America

A winter sunrise view of Grand Canyon Arizona from Bright Angel Trail on the South Rim just past the second tunnel, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

View from South Rim at sunrise, 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 common side-blotched lizard (Uta stansburiana), on the rocks in 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

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

View of Antelope Point, on the left, in Canyon De Chelly from just west of Tseyi Overlook, 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

Rippling sandstone badlands near the Spur Canyon at Horseshoe Bend, 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

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

Colorado River dividing California and Arizona, near Parker, 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

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

Woman sitting on the cliff of the desert view point over the Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Desert view point over the Grand Canyon, UNESCO World Heritage Site, 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

Giant saguaro cactus (Carnegiea gigantea), under full moon in the Catalina Mountains, Tucson, 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

A grove of trembling aspens (Populus tremuloides), in fall coloration near Snowbowl, Flagstaff, 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

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

Hikers in Havasu Creek, 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 bighorn sheep (Ovis canadensis nelsoni), in a cave for shade 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

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

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

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

Betatakin Canyon, Navajo National Monument, inside the Navajo Indian Reservation northwest of the town of Kayenta, 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

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

Sandstone formations in evening light with scrub in foreground, Monument Valley Tribal Park, Arizona, United States of America, North America

Petrified wood and an eroded hill, Petrified Forest National Park, Arizona, United States of America, North America

Yellow-eyed junco (Junco phaeonotus), Chiricahuas, Coronado National Forest, 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

Female mallard (Anas platyrhynchos) swimming, Sweetwater Wetlands, Tucson, 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

View of Freya's Castle and Vishnu Temple on the left and Wotan's Throne on the right at sunrise viewed from Cape Royal, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The summit of Tritle Peak off Roosevelt Point on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Bright Angel Point trail sign pointing the way to the overlook on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Glen Canyon Dam on the Colorado River in northern Arizona with Lake Powell in the background, Arizona, United States of America, North America

Erosion pattern in colorful dirt, Vermilion Cliffs National Monument, 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 white-nosed coati (Nasua narica), at the Santa Rita Lodge in Madera Canyon, southern Arizona, Arizona, United States of America, North America

Saguaro cactus (Carnegiea gigantea), photographed under a waning moon in the Sweetwater Preserve, Tucson, 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