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Grand Canyon viewed from a cliff overlooking Papago Creek, with Papago Point just right of center, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A view of the Puebloan granaries at Upper Nankoweap, Grand Canyon National Park, Arizona, United States of America, North America
Slickrock, Zion National Park, Utah, United States of America, North America
Rock face and waterfalls, Emerald Pools, Zion National Park, Utah, United States of America, North America
Arches Bows National Park, Utah, United States of America, North America
Jenny Lake from Inspiration Point on a hazy autumn (fall) day, Grand Teton National Park, Wyoming, United States of America, North America
Grand Geyser run-off, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mormon Row barn with Teton Range in autumn (fall), Antelope Flats, Grand Teton National Park, Wyoming, United States of America, North America
Cascades through moss-covered boulders, Olympic National Park, Washington State, United States of America, North America
Large hoodoos strongly lit by early morning sun in winter, Queen's Garden Trail, Bryce Canyon National Park, Utah, United States of America, North America
Late afternoon sun lights lines of hoodoos at Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America
Hoodoos lit by early morning sun in winter, Peekaboo Loop Trail, Bryce Canyon National Park, Utah, United States of America, North America
Sand dunes with grasses and ridges in foreground, Great Sand Dunes National Park, Colorado, United States of America, North America
Sand dunes at dawn, Great Sand Dunes National Park, Colorado, United States of America, North America
Mesa Arch at dawn, Canyonlands National Park, Island in the Sky District, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Zion National Park, Utah, United States of America, North America
Yellowstone National Park in winter, UNESCO World Heritage Site, Wyoming, United States of America, North America
Wooden statues on the royal grounds in Puuhonua o Honaunau National Historical Park, Big Island, Hawaii, United States of America, Pacific
Black Bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
Panorama of Skyline Arch, Arches National Park, Utah, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Sunrise over the Badlands, Badlands National Park, South Dakota, United States of America, North America
Badwater Basin, Death Valley National Park, California, United States of America, North America
Mosaic Canyon, Death Valley National Park, California, United States of America, North America
View through Windows Arch, Arches National Park, Utah, United States of America, North America
Roseata gilia (Gilia roseata) and South Window, Arches National Park, Utah, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
Oza Butte viewed from Bright Angel Point on North Rim after sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Rock forms above Echo Canyon, morning on the trail to Observation Point, October, Zion Canyon, Zion National Park, Utah, United States of America, North America
View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Park Avenue, Arches National Park, Moab, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Mesquite flat sand dunes in Death Valley National Park, California, United States of America, North America
The cliffs of Bright Angel Canyon at Grand Canyon viewed from the start of Garden Creek Canyon along Bright Angel Trail, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An area south of the Tepees in Petrified Forest National Park known as the Little Tepees, Arizona, United States of America, North America
Aerial view of mountains and streams in Lake Clark National Park, Alaska, 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
Hiking to the Puebloan granaries at Upper Nankoweap, 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
Valley View with El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Back Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Cathedral Group of the Teton Range lit by intense dawn light in autumn (fall), Grand Teton National Park, Wyoming, United States of America, North America
Bison herd with calf in Grand Teton National Park, Wyoming, United States of America, North America
Rocks and hoodoos lit by strong dawn light in winter, Queen's Garden Trail at Sunrise Point, Bryce Canyon National Park, Utah, United States of America, North America
Snow-covered pine trees, Bryce Canyon National Park, Utah, United States of America, North America
Looking south from Cape Royal on the North Rim at dawn, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Teton range at dawn in winter, Grand Teton National Park, Wyoming, United States of America, North America
Broken Arch at dawn, Arches National Park, Utah, United States of America, North America
Rock Needle, Needles District, Canyonlands National Park, Utah, United States of America, North America
Looking out through Tower Arch, Arches National Park, Utah, United States of America, North America
Landscape near Zion National Park, Utah, United States of America, North America
Zion National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Zion National Park, Utah, United States of America, North America
Zion National Park, Utah, United States of America, North America
Zion National Park, Utah, United States of America, North America
Doublet Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bisons, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Wooden statues on the royal grounds in Puuhonua o Honaunau National Historical Park, Big Island, Hawaii, United States of America, Pacific
Golden-mantled squirrel (Citellus lateralis), Rocky Mountain National Park, Colorado, United States of America, North America
Delicate Arch at sunset, Arches National Park, Utah, United States of America, North America
Balanced Rock on a foggy morning at sunrise, Arches National Park, Utah, United States of America, North America
Lower Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
View over a valley with colourful foliage in the Indian summer, Great Smoky Mountains National Park, UNESCO World Heritage Site, Tennessee, United States of America, North America
Two Richardson Ground Squirrel (Citellus richardsoni), Grand Teton National Park, Wyoming, United States of America, North America
Bison (Bison bison) in snow, Yellowstone National Park, Wyoming, United States of America, North America
Road leading through the Capitol Reef National Park, Utah, United States of America, North America
Badwater Basin, Death Valley National Park, California, United States of America, North America
Zabriskie Point, Death Valley National Park, California, United States of America, North America
Sol Doc River, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
View over the Zion National Park from Angel's Landing, Zion National Park, Utah, United States of America, North America
Angels Window at Cape Royal on the North Rim of Grand Canyon at sunrise, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
The towering cliffs of the Zion National Park, Utah, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
The cliffs of the Narrows in the Zion National Park, Utah, United States of America, North America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Capitol Reef National Park, Utah, United States of America, North America
View of Yuma Point from Hermit Trail in winter at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
South Window, Arches National Park, Utah, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Tourist boat on sea in Aialik Bay, Kenai Fjords National Park, Kenai Peninsula Borough, Southcentral Alaska, Alaska, United States of America, North America
Adult male plateau fence lizard (Sceloporus tristichus), north rim of Grand Canyon National Park, 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