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Saguaro organ pipe cactus and prickly pear cactus, Saguaro National Monument, Tucson, Arizona, USA, North America

Aerial view of the South Rim, Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, USA, North America

Rock formation known as Swirls on Colorado Plateau, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

West Rim, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Returning on horseback, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America

Layered sandstone column under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Petrified Forest National Park, Blue Mesa, Blue Mesa Trail, sedimentary layers of bluish bentonite clay

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

Lomaki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

A lone photographer stands perched on a rock silhouetted against the dawn orange sky at Yaki Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sun rays extend from a cloud perched on the horizon putting Vishnu temple into silhouette, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Cape Royal Viewpoint at sunset, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Lone horse rider at John Fords Point, Merrick Butte, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

West Mitten Butte, East Mitten Butte and Merrick Butte, The Mittens at sunset, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

Wotans Throne, Cape Royal Viewpoint at sunset, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

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

Wupatki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Kiva in foreground, Wupatki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Colorado River below, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone brain rock and red and white swirls at dawn, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Brain Rock at dusk, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Juniper and sandstone cones under the stars, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Man rock climbing at The Pit (Le Petit Verdon) in Sandy's Canyon, Flagstaff, Arizona, United States of America, North America

Totem Pole and Sand Springs, Monument Valley Tribal Park, Arizona, United States of America, North America

Grand Canyon viewed from South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Tourist admiring the view from the South Rim, near Yavapai Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Sedimentary layers of bluish bentonite clay, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America

Coyote Buttes North, fragil sandstone formed by wind and water, Paria Wilderness Area, Arizona, United States of America, North America

Upper Antelope Canyon (Tse' bighanilini), LeChee Chapter, Navajo Nation, Arizona, United States of America, North America

Man rock climbing at The Pit (Le Petit Verdon) in Sandy's Canyon, Flagstaff, Arizona, United States of America, North America

Agate Bridge, a petrified log spanning ravine, Petrified Forest National Park, Arizona, United States of America, North America

Tree on sandstone silhouetted at sunset with purple clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

Sunrise at Mather Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sandstone formation under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Steamboat Mountain at sunset from Locust Point, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Navajo person rides a horse between rock formations, Monument Valley Navajo Tribal Park, Utah Arizona, United States of America

Sandstone wave and cones under clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Orange clouds at sunset over sandstone cones, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Red and yellow sandstone wave channel, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

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

Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America

Isis Temple picks up the first light of the day as the sun rises on the Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Man rock climbing at The Pit (Le Petit Verdon) in Sandy's Canyon, Flagstaff, Arizona, United States of America, North America

Sedimentary layers of bluish bentonite clay, The Tepees, Petrified Forest National Park, Arizona, United States of America, North America

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

View from North Window, Monument Valley Navajo Tribal Park, Arizona, United States of America, North America

Red and white sandstone swirls at dawn, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

Sedimentary layers of bluish bentonite clay with petrified wood, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

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

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

Ridges in sandstone under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America

Canyon de Chelly National Monument, View from the Whitehouse Overlook, Arizona, United States of America

Clouds over sandstone cones, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America

West Rim at sunrise, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Sunset at Locust Point, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Lone tourist on Old Navajo Bridge over Marble Canyon and Colorado River, near Lees Ferry, Arizona, United States of America, North America

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

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

Brain Rock at sunset, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America

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

South Rim rock formations, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Saguaro Cactus (Camegiea Gigantea), West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America

Lomaki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Looking down onto the inner canyon and Colorado River from Mohave Point as it flows through the Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Canyon de Chelly National Monument, View from the Whitehouse Overlook, Arizona, United States of America, North America

Lone hiker near Yavapai Point Overlook, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Tourists at Mather Point overlook, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

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

A low sun lights Brahma and Zoroaster temples and the cliff below Hopi Point with the metamorphic Vishnu basement rocks below, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

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