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Broad-billed hummingbird (Cynanthus latirostris) hovering, Patagonia, Arizona, United States of America, North America

Grand Canyon North Rim from the end of the Cliff Spring Trail near Cape Royal, 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

Angel's Window at Cape Royal on North Rim above Unker Creek near sundown, with smoke from a wildfire creating brown haze on the horizon, Gand Canyon National Park, UNESCO World Heritage Site, 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

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

Wispy clouds at sunset, White Pocket, Vermilion Cliffs National Monument, 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

Lights and shadows in Upper Antelope Canyon, Navajo Tribal Park, 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

The large white blossoms of the night blooming Trichocereus Spachianus Cactus (Golden Torch Cactus), Arizona, United States of America, North America

Cathedral Rock viewed from a slick sandstone plateau, composed of 21 photos stitched into a super panorama, 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

The road leading up to 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

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 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

The super full moon rising over saguaro cactus (Carnegiea gigantea), Sweetwater Preserve, Tucson, 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

Grand Canyon viewed from the vista of Mohave Point along the Hermit Road, 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

The northeast side of Keyhole Mesa in the First Forest of Petrified Forest National Park, 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

Grand Canyon viewed from Point Sublime on the North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Tabletop Rock on the cliffs of the Transept Canyon at Grand Canyon North Rim along the Widforss Trail, UNESCO World Heritage Site, 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

Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.

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

A hiker standing on a cliff between Zuni and Papago Points at Grand Canyon on a stormy day, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Interior of an Ancient Hogan used in Navajo ceremonies, in Navajo National Monument, Navajo Indian Reservation northwest of the town of Kayenta, Arizona, United States of America, North America

Saguaro cactus (Carnegiea gigantea) dot the land surrounding Picacho Peak, Picacho Peak State Park, Arizona, United States of America, North America

Detail of the rock walls of the Grand Canyon, on a summer day, UNESCO World Heritage Site, Arizona, United States of America, North America

A boy admires the beautiful landscape of rock formations near the town of Page, 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 path down into the Spur Canyon in the badlands 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

The paved rim trail along the cliffs of Grand Canyon South Rim between the village and Trailview Overlook Vista, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

A sign marking the one way entrance to Hopi Point from Hermit Road, Grand Canyon, Arizona, United States of America, North America

The Powell Memorial in the distance viewed from Hopi Point, Grand Canyon, UNESCO World Heritage Site, 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

Hopi Point in the distance viewed from the rim trail near Mohave Point, Grand Canyon, UNESCO World Heritage Site, 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

Looking back from Mohave Point Overlook near sundown, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Look back at the Great Mohave Wall Overlook from a rock platform just below the cliffs at Grand Canyon, 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

A pointed peak of bentonite in Hamilili Valley on the south end of Petrified Forest National Park, Arizona, United States of America, North America

Butte at first light, 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

Layered sandstone, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Clouds over white and salmon sandstone, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

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

Clouds at dawn over salmon and white sandstone, White Pocket, 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

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

The swirl of stars in the night sky over Grand Canyon South Rim viewed from Moran Point, Grand Canyon National Park, UNESCO World Heritage Site, 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

Hypomelanistic Western Diamond-Back Rattlesnake (Western Diamondback Rattlesnake) (Crotalus atrox) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

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

Panorama view of the Petrified Forest National Park from the First Forest Trail, 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

A herd of wild Buffalo grazing in a meadow on the North Rim of Grand Canyon, 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 female black-chinned hummingbird (Arcgilochus alexandri), 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

A purely accidental photo of a rainbow intersecting Coffee Pot Rock in Sedona, 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

Tower, Desert View Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

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

Mounds of a volcanic clay called Bentonite in the Petrified Forest National Park, Arizona, United States of America, North America

The super full moon rising over saguaro cactus (Carnegiea gigantea), Sweetwater Preserve, Tucson, 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

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

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

Sand Castle formations on the edge of the Red Basin in Petrified Forest National Park, Arizona, United States of America, North America

Panorama of Grand Canyon viewed from Powell Point along the Hermit Road, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A rock formation called Agate Mesa, 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

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

Ancient Indian petroglyphs on a boulder near Martha's Butte in Petrified Forest National Park Arizona.