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Dead trees at the top of Canary Spring, Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Trees near Visitor Centre, Capitol Reef National Park, Utah, United States of America, North America
Arches National Park, Moab, Grand County, Utah, United States of America, North America
Coyote (Canis latrans) in snow, Yellowstone National Park, Wyoming, United States of America, North America
The huge caldera of the Crater Lake National Park, Oregon, United States of America, North America
Hoary marmot (Marmota caligata), Glacier National Park, Montana, United States of America, North America
Joshua Tree National Park, California, United States of America, North America
Bridesveil Falls with rainbow, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Common Raven (Corvus corax), Bryce Canyon National Park, Utah, United States of America, North America
First light at Zabriskie Point, Death Valley National Park, California, United States of America, North America
Double Arch, Arches National Park, Utah, United States of America, North America
Sand ripples, Mesquite bushes in the mesquite Flats sand dunes, Grapevine Mountains of the Amargosa range behind, Stovepipe Wells, Death Valley National Park, California, United States of America, North America
Mount McKinley among clouds, Denali National Park and Preserve, Alaska, United States of America, North America
Mount Foraker in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
Willow Ptarmigan (Lagopus lagopus), Katmai National Park and Preserve, Alaska, United States of America, North America
Stovepipe Wells Sand Dunes, Death Valley National Park, California, United States of America, North America
Delicate Arch under a blue sky, Arches National Park, Utah, United States of America, North America
Bowman Lake, Glacier National Park, Montana, United States of America, North America
An overlook along the Transept Trail at Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
House Valley, with the Vermilion Cliffs in the distance, viewed from the summit of Saddle Mountain on the north edge of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A view of the Exit Glacier, coming off the Harding Ice Field, Kenai Fjords National Park, Alaska, United States of America, North America
Opalescent pool in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Lower Falls in the Grand Canyon of Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, 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
View over the coastline of the Cape Breton Highlands National Park, Cape Breton Island, Nova Scotia, Canada, North America
Bison (Bison bison) cow and calf, Yellowstone National Park, Wyoming, United States of America, North America
Granite mountains with Half Dome in the background, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Rock formation, Green River Overlook, Canyonlands National Park, Moab, Utah, United States of America, North America
Mist, rocky shoreline and forest, Inian Islands, Icy Strait, between Chichagof Island and Glacier Bay National Park, Alaska, United States of America, North America
Mist over the Fairweather Range, Icy Strait, between Chichagof Island and Glacier Bay National Park, UNESCO World Heritage Site, Inside Passage, Alaska, United States of America, North America
Mount Redoubt, Lake Clark National Park and Preserve, Alaska, United States of America, North America
Mount Redoubt, Lake Clark National Park and Preserve, Alaska, United States of America, North America
An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America
Mother brown bear (Ursus arctos) standing and looking for salmon, Lake Clark National Park and Preserve, Alaska, United States of America, North America
Morning view of sun peaking round El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite Valley and Bridalveil Fall from Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
View of Merced River and Upper Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Deer wandering Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Trail lights on Banff Avenue and mountains in background at dusk, Banff, Banff National Park, Alberta, Canada, North America
Panoramic view by moonlight over Badwater Basin to the Panamint Range, Dante's View, Death Valley National Park, California, United States of America, North America
Woman at Mormon Row and Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Mormon Row and Teton Range, Grand Teton National Park, 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
Bryce Canyon National Park, Utah, United States of America, North America
Three Brothers, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Zabriskie Point, Death Valley National Park, California, United States of America, North America
Adult hoary marmot (Marmota caligata), on the Skyline Trail, Mount Rainier National Park, Washington State, United States of America, North America
View of the Deadhorse Creek Trail, Mount Rainier National Park, Washington State, United States of America, North America
Hikers in Havasu Creek, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View of the North Rim of Grand Canyon National Park from Bright Angel Point, UNESCO World Heritage Site, Arizona, United States of America, North America
Broken Arch, Arches National Park, Moab, Utah, 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
Ancient Indian Ruins on the edge of a cliff east of Papago Point at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Colter Lake in Grand Teton National Park, Wyoming, United States of America, North America
Colter Lake in Grand Teton National Park, Wyoming, United States of America, North America
A view of the Bryce amphitheater from the rim at Bryce Canyon National Park, Utah, United States of America, North America
An adult female bighorn sheep (Ovis canadensis nelsoni), with two lambs in Grand Canyon National Park, Arizona, United States of America, North America
Flight seeing from Haines over the Fair-weather Range in Glacier Bay National Park, Southeast Alaska, USA.
Elk, Grand Canyon National Park, Arizona, USA
A view from the Mossy Cave Trail of red rock and hoodoos, Bryce Canyon National Park, Utah, United States of America, North America
Inside the Big Room at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Inside the Big Room at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Various hoodoos in Angels Garden at Petrified Forest National Park, Arizona, United States of America, North America
A mountain biker in Titus Canyon in Death Valley National Park, California, United States of America, North America
North Window, Arches National Park, Utah, Moab, USA
Elk, Yellowstone National Park, Wyoming, United States of America, North America
Yellowstone waterfall during a snowstorm in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Hoodoos with snow lit by late afternoon sun, from Rim Trail near Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America
Volcanic landscape, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Big Island, Hawaii, United States of America, North America
Grand Canyon view from Moran Point on a cloudy day with the clouds floating inside the canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Virgin River Narrows, Zion National Park, Utah, United States of America, North America
Virgin River, Zion National Park, Utah, United States of America, North America
Lower Falls on the Yellowstone River, Grand Canyon of the Yellowstone, from Lookout Point, North Rim, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Highway 24 by the Castle, Capitol Reef National Park, Utah, United States of America, North America
Morning Glory Pool with snow and reflections, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Trail to Sol Duc Falls, Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
Upper and Lower Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
View over valley with colourful foliage in the Indian summer, Great Smoky Mountains National Park, UNESCO World Heritage Site, Tennessee, United States of America, North America
Evening light, reflection of Teton Range in icy pond, Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
A view of Natural Bridge Canyon in Death Valley National Park, California, 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
Delicate Arch with sun and clouds at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
View of the valley floor from Angel's Landing Trail in Zion National Park, Utah, United States of America, North America
Looking north from Dante's View in Death Valley National Park, California, United States of America, North America
Sunset at the Salt pan polygons, Badwater Basin, 282ft below sea level and the lowest place in North America, Death Valley National Park, California, United States of America, North America
Backlit sandstone hoodoos in Bryce Amphitheater, Bryce Canyon National Park, Utah, United States of America, North America
Boat house at Lake Louise, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America
A young brown bear (Ursus arctos) fishing in the water at Lake Clark National Park and Preserve, Alaska, United States of America, North America
Forest path, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Pacific coast beach, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Pacific coast beach sunset, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Autumn colours of Lake McDonald, Glacier National Park, Montana, United States of America, North America
Bright Angel Point trail sign pointing the way to the overlook on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Sign marking the Nankoweap Trail for the Saddle Mountain Wilderness that borders Grand Canyon National Park, Arizona, United States of America, North America
Sign for the main visitor center at Grand Canyon North, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Stairs leading to Lower Falls of the Grand Canyon, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The caldera of the Crater Lake National Park, Oregon, United States of America, North America