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An ominous looking hoodoo in Devil's Playground at Petrified Forest National Park, Arizona, United States of America, North America
The spires of Cockscomb Butte in Sedona viewed from its south end summit, 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 fantastic play of lights illuminates the Grand Canyon during a summer day, Tusayan, Arizona, United States of America, North America
Golden light envelops the Grand Canyon during a summer sunrise, Tusayan, Arizona, United States of America, North America
The Upper Antelope Canyon on a sunny summer day, Page, Arizona, United States of America, North America
Fisheye view of a dry waterfall where the Hance Creek drains into Hance Canyon at Grand Canyon South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A water spring seeping from a sandstone wall, at Ferry Swale in the Glen Canyon Recreation Area near Page, Arizona, United States of America, North America
The Trailview Overlook East Vista at Grand Canyon South Rim, just off Hermit Road, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America
An overlook halfway between the Abyss and Monument Creek Vista, Grand Canyon, Arizona, United States of America, North America
A paved walkway leading to the entrance of the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America
A small hill of gray bentonite clay that appears to be melting into the purple bentonite of Hamilili Valley on the south end of Petrified Forest National Park, Arizona, United States of America, North America
Saguaro cactus (Carnegiea gigantea), Saguaro National Park, 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
Woman looking over Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The famous Mushroom Rock at Shoshone Point at sunrise, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Huge canyon at the Pre-Aksumite settlement of Qohaito (Koloe), Eritrea, Africa
Mules taking tourists along the Colorado River Trail, Grand Canyon, Arizona, United States of America, North America
View along Highway 163 towards Monument Valley Tribal Park, Arizona, United States of America, North America
American Kestrel (Sparrow Hawk) (Falco sparverius) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America
The remains of an old road in the Jasper Forest Petrified Forest National Park, built in the 1930s but then abandoned in the 1940s, Arizona, United States of America, North America
Male northern cardinal (Cardinalis cardinalis), The Pond, Amado, Arizona, United States of America, North America
An overlook along the Transept Trail with Oza Butte just right of center at Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View of Grand Canyon from Bright Angel Point on the North Rim, with Brahma and Zoroaster Temples visible in the distance an Oza Butte on far right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An adult female black-chinned hummingbird (Arcgilochus alexandri), Madera Canyon, southern Arizona, Arizona, United States of America, North America
Giant saguaro cactus (Carnegiea gigantea), at dawn in the Sweetwater Preserve, Tucson, Arizona, United States of America, North America
Duck Rock, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
From Powell Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The road to Monument Valley, Navajo Tribal Park, Arizona, United States of America, North America
Lights and shadows in Upper Antelope Canyon, Navajo Tribal Park, Arizona, United States of America, North America
White House Overlook under approaching storm, Canyon de Chelly National Monument, Arizona, United States of America, North America
A road leading to Grasshopper Point in Sedona with a warning sign to not run over protected snakes, Arizona, United States of America, North America
View from Picnic Hill along the Thumb Butte day use hiking trail covered in winter snow and ice, Prescott National Forest, west of Prescott, Arizona, United States of America, North America
Panorama of Bell Rock, Courthouse Butte, and Lee Mountain, viewed from the HiLine Trail, composed of three photos, Arizona, United States of America, North America
Panorama view of Cathedral Rock and Sedona from the HiLine Trail Vista, Arizona, United States of America, North America
Panorama view of Tuzigoot Ruins from southeast corner, managed by the National Park Service, Arizona, United States of America, North America
Saguaro cactus (Carnegiea gigantea), Organ Pipe Cactus National Monument, Sonoran Desert, Arizona, United States of America, North America
A hiker in Marble Canyon along the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Tourists explore a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America
Hikers head up a dry gulch in a side canyon off the Grand Canyon, Arizona, United States of America, North America
A hoodoo shaped like a table top, on a cliff along the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
A Bentonite formation in Petrified Forest National Park near Crystal Forest called the Battleship, Arizona, United States of America, North America
View from Grandview Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bright Angel Canyon viewed from Coconino Overlook along North Kaibab Trail on Grand Canyon North Rim, Arizona, United States of America, North America
Panorama of the Colorado River just north of Lee's Ferry in the Glen Canyon Recreation Area, Arizona, United States of America, North America
Panorama of Vermilion Cliffs from the Saddle of Cathedral Rock and Sunset Rock at Marble Canyon, Arizona, United States of America, North America
Colorado River flowing through Marble Canyon, viewed above Cathedral Wash, adjacent to the Glen Canyon Recreation Area, Arizona, United States of America, North America
Wavy sandstone formation called Beehive Rock in Glen Canyon Recreation Area, The New Wave near Beehive campground, Arizona, United States of America, North America
Three hoodoos in a triangular formation in Devil's Playground called the Unholy Trinity, Petrified Forest National Park, Arizona, United States of America, North America
A rock bridge in Devil's Playground where Trolls could hide, Petrified Forest National Park, Arizona, United States of America, North America
Golden light envelops the Grand Canyon during a summer sunrise, Tusayan, Arizona, United States of America, North America
A girl admires the beautiful landscape of rock formations near the town of Page, Arizona, United States of America, North America
One of three ponds called the Hearst Tanks, on Grand Canyon South Rim, located one mile east of Grandview Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View from the top of a wavy sandstone mesa, a fossilized sand dune, at Ferry Swale in the Glen Canyon Recreation Area near Page, Arizona, United States of America, North America
Sandstone hoodoo formation north of the Horseshoe Bend Overlook along the Colorado River in Page, Arizona, United States of America, North America
A sign marking the one way entrance to Hopi Point from Hermit Road at Grand Canyon, Arizona, United States of America, North America
The Powell Memorial in the distance viewed from Hopi Point at Grand Canyon, Arizona, United States of America, North America
The sign marking the entry pathway to the Powell Memorial from the parking lot off Hermit Road, Grand Canyon, Arizona, United States of America, North America
The Trailview Overlook West Vista at Grand Canyon South Rim, just off Hermit Road, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America
The entry sign for Maricopa Point, Grand Canyon, Arizona, United States of America, North America
The safety railing of the Great Mohave Wall Overlook at Grand Canyon, Arizona, United States of America, North America
Sign stating that bikes are not allowed beyond this point at Hermits Rest, Grand Canyon, Arizona, United States of America, North America
The cliffs of Grand Canyon west of Monument Creek Vista, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A small overlook east of Pima Point at Grand Canyon off of Hermit Road, Grand Canyon, Arizona, United States of America, North America
Hermit Canyon viewed from between Pima Point and Hermits Rest, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Steps leading down to Trailview Overlook under moonlight, Grand Canyon, Arizona, United States of America, North America
View from below a cliff ledge just west of Hermits Rest, Grand Canyon, Arizona, United States of America, North America
The cliffs of Waldron Canyon west of Hermits Rest, Grand Canyon, Arizona, United States of America, North America
Off trail view of Waldron Canyon southwest of Hermit Canyon in winter, accessible via Hermit Trail to the Waldron Trail Junction, Grand Canyon, Arizona, United States of America, North America
A divide in the trail leading to the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
Navajo Tribal Reservation, Monument Valley, Utah/Arizona, USA
Colorado River viewed from the cliffs of Desert View Point at Grand Canyon South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Deep chasm view from Grandview Point at Grand Canyon South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Rock formation known as Swirls on Colorado Plateau, Arizona, United States of America (U.S.A.), North America
Rock formation known as Swirls, on Colorado Plateau, Arizona, United States of America (U.S.A.), North America
Petroglyphs, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America
White and pink sandstone formations, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Red clouds over sandstone at sunrise, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Upper section of Bear Canyon facing south, located in northeastern section of Prescott National Forest near Drake, Arizona, United States of America, North America
Grand Canyon view from the east side of Skeleton Point along the South Kaibab Trail, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Panorama view of the Petrified Forest National Park from the First Forest Trail, Arizona, United States of America, North America
A petrified log called the Agate Bridge in Petrified Forest National Park, Arizona, United States of America, North America
Broad-billed hummingbird (Cynanthus latirostris) hovering, Patagonia, 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
A bright lightning strike illuminating the Buckeye Foothills in Arlington during the 2012 Monsoon season, Arizona, United States of America, North America
Sunrise on saguaro cactus in bloom (Carnegiea gigantea), Sweetwater Preserve, Tucson, Arizona, United States of America, North America
View of Shoshone Point on the south rim of the Grand Canyon from the west side of the point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Sunset from the south rim of the Grand Canyon at Shoshone Point, UNESCO World Heritage Site, Arizona, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
A famous rock arch formation in Sedona on the top of Mitten Ridge known as Elephant Head Arch, Arizona, United States of America, North America
The Central Spires of Cathedral Rock viewed from the west side of the formation, Sedona, Arizona, United States of America, North America
View of Sedona and Cathedral Rock from the summit of Scheurman Mountain, Sedona, Arizona, United States of America, North America
Highway on the North Rim of the Grand Canyon, Arizona, United States of America, North America
Grand Canyon view east of Pinal Point on the south rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Meadow near Williams known as Sunflower Flat Wildlife Preserve, normally a wetland now dry due to Arizona's drought, Arizona, United States of America, North America
North view from the saddle of Granite Mountain in the Prescott National Forest of Arizona.
Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America
Snow covered Cathedral Rock in Sedona viewed from a sandstone plateau along Secret Slick Rock Trail, 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