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Male lesser goldfinch (Carduelis psaltria), Patagonia-Sonoita Creek Preserve, Patagonia, 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 petrified log called the Agate Bridge in Petrified Forest National Park, Arizona, United States of America, North America

Formation in Glen Canyon Recreation Area called Cove of the Winds, located within the New Wave near the Beehive Campground, Arizona, United States of America, North America

Flower of the Escobaria Vivipara cactus (Pin Cushion Cactus), Arizona, United States of America, North America

Cathedral Rock at the intersection of upper Baldwin Loop and HiLine Trails with sign warning that the HiLine Trail is for experts only, Sedona, Arizona, United States of America, North America

The junction where the Transept Trail meets 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

Strangely shaped granite rocks along a trail in Constellation Park called Hole in the Wall, Prescott, 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

The Bell Rock of Sedona viewed from the Rector Connector Trail junction, 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

View of Sedona and Cathedral Rock from the summit of Scheurman Mountain, Sedona, Arizona, United States of America, North America

Panorama view of Sedona from the Schnebly Hill Vista at midday, Arizona, United States of America, North America

Organ pipe cactus (Stenocereus thurberi) at sunset, 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

View from Cape Royal Point of the north rim of 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

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 Courthouse Butte and Bell Rock with a coating of winter snow on their slopes in Sedona, Arizona, United States of America, North America

Natural stone bridge of petrified wood called Keystone Bridge, located on Blue Mesa in Petrified Forest National Park, 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

Large pieces of petrified wood on the west side of Red Basin in Petrified Forest National Park Arizona, United States of America, North America

A long formation of purple Bentonite clay called the Purple Peninsula, in Petrified Forest National Park, Arizona, United States of America, North America

A late day storm viewed from the cliffs above Papago Creek at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Hills of blood red bentonite clay below Kachina Point in Petrified Forest National Park, Arizona, United States of America, North America

Grand Canyon view north of Point Imperial with Woolsey Butte on the left and Mount Hayden on the right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Upper Cathedral Wash in Glen Canyon Recreation Area with path leading to the Vermilion Cliffs, Arizona, United States of America, North America

Lake Powell viewed from an overlook in the Wahweap Recreation Area near Page, Arizona, United States of America, North America

Boulders in Devil's Playground called Gnomes of Desolation, 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

The desolate Hellscape of Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America

Loki's Rock at Grand Canyon east of Thor's Hammer Overlook, Grand Canyon National Park, UNESCO World Heritage Site, 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 west rock ridge of the New Wave along the Beehive Trail at sundown, Glen Canyon Recreation Area, near Page, Arizona, United States of America, North America

A series of isolated reflecting pools of water in the badlands of Horseshoe Bend near Page, Arizona, United States of America, North America

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

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

The swirls and blocky texture of fossilized sand dunes in the badlands of Horseshoe Bend, Arizona, United States of America, North America

A hoodoo shaped like a vulture's head, at Horseshoe Bend in the Glen Canyon Recreation Area, near Page, Arizona, United States of America, North America

The rim trail at Grand Canyon heading east toward Powell Point from Hopi Point, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

View of the cliffs of the Abyss Overlook along Hermit Road, with Mohave Point in distance left of centre, Grand Canyon, Arizona, United States of America, North America

Moonlight view of Grand Canyon from The Abyss Overlook, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

An ocean of fog rolling across the town of Chino Valley just as the sun is rising behind Mingus Mountain on a winter morning, Arizona, United States of America, North America

Grand Canyon viewed from Pima Point at sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon viewed from Powell Point under moonlight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon with Yuma Point on the left and Hermits Rest on the right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The cliffs of Waldron Canyon west of Hermits Rest in winter, Grand Canyon, Arizona, United States of America, North America

The Kaibab Forest in winter near Waldron Canyon west of Hermits Rest, Grand Canyon, Arizona, United States of America, North America

The cliff trail of Waldron Canyon , southwest of Hermit Canyon in winter, Grand Canyon, Arizona, United States of America, North America

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

White and pink sandstone formations, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

View of the formation called Duck On A Rock in the afternoon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Mules taking tourists along the Colorado River Trail, Grand Canyon, Arizona, United States of America, North America

Female acorn woodpecker (Melanerpes formicivorus), Chiricahua 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

Male black-chinned hummingbird (Archilochus alexandri), Sweetwater Wetlands, Tucson, Arizona, United States of America, North America

Female Audubon's yellow-rumped warbler (Dendroica coronata auduboni), Hereford, Arizona, United States of America, North America

View of the Petrified Forest National Park from the Long Logs Trail on the south end of the park, Arizona, United States of America, North America

Hooded oriole (Icterus cucullatus), The Pond, Amado, Arizona, United States of America, North America

A view of western Sedona from a cliff on the south side of Cathedral Rock, Sedona, 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

A purely accidental photo of a rainbow intersecting Coffee Pot Rock in Sedona, Arizona, United States of America, North America

Sandstone layers and lines, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, 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

Lights and shadows in Upper Antelope Canyon, 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

Western view of Sterling Canyon from its crest along the Sterling Pass Trail north of Sedona, Arizona, United States of America, North America

Sandstone buttes in Monument Valley Navajo Tribal Park on the Arizona-Utah border, United States of America, North America

Sandstone buttes in Monument Valley Navajo Tribal Park on the Arizona-Utah border, United States of America, North America

Sandstone buttes in Monument Valley Navajo Tribal Park on the Arizona-Utah border, 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

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

Cathedral Rock seen from Red Rock State Park, Sedona, Arizona, United States of America, North America

The second tunnel along Bright Angel Trail in winter at sunrise on the South Rim of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Panorama view of the Painted Desert from Tiponi Point in Petrified Forest National Park, Arizona, United States of America, North America

Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America

Panorama view of the Painted Desert from Chinde Point in Petrified Forest National Park, Arizona, United States of America, North America

View from the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America

A large petroglyph covered boulder in dry Stillman Lake at the bottom of the Verde River Canyon in Paulden, 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

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

The road leading to Kaibab Lake in the Kaibab National Forest near Williams, Arizona, United States of America, North America

Monument Valley with West Mitten Butte, East Mitten Butte and Merrick Butte, Monument Valley Tribal Park, Arizona, United States of America, North America

A hoodoo formation called Medusa's Child below the cliffs of Agate Plateau in Petrified Forest National Park, Arizona, United States of America, North America