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Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Old Faithful geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cathedral Group of Mount Teewinot, Mount Owen and Grand Teton reflected in the Beaver Pond, Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
Tourist in backlight waiting for sunset on top of Haleakala National Park, Maui, Hawaii, United States of America, Pacific
Ponderosa pine on sandstone cone, Zion National Park, Utah, United States of America, North America
White Sands National Park near Alamogordo, New Mexico, United States of America, North America
Two dorks playing with shadows in White Sands National Park, New Mexico, United States of America, North America
Alligator, Everglades National Park, UNESCO World Heritage Site, Florida, 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
Sandstone Fins, rock formations, Devils Garden, Arches National Park, Utah, United States of America, North America
Peoples at Delicate Arch at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Bighorn sheep (Ovis canadensis) close up, Badlands National Park, South Dakota, United States of America, North America
Sunburst through Turret Arch, Arches National Park, Utah, United States of America, North America
Sunburst through Turret Arch, Arches National Park, Utah, United States of America, North America
Black bear (Ursus americanus) cub of the year in a tree, Yellowstone National Park, Wyoming, United States of America, North America
Rock formation and common paintbrush (Castilleja chromosa), Arches National Park, Utah, United States of America, North America
Moose (Alces alces) cow, Glacier National Park, Montana, United States of America, North America
The Castle and Fremont River, Capitol Reef National Park, Utah, United States of America, North America
Mount McKinley in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) eating a salmon, Katmai National Park and Preserve, Alaska, United States of America, North America
Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) cub, Katmai National Park and Preserve, Alaska, United States of America, North America
Ubehebe Crater, a volcanic crater half a mile across and 600 feet deep, Death Valley National Park, California, 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
The Giant Petrified Logs of Petrified Forest National Park, located along a trail behind the Rainbow Museum, Arizona, United States of America, North America
Moro Rock and the high mountains of the Sierra Nevada, Sequoia National Park, California, United States of America, North America
An adult Arctic ground squirrel (Urocitellus parryii) standing in the brush at Denali National Park, Alaska, United States of America, North America
Sunset at Avalanche Creek, Glacier National Park, Montana, 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
Dead trees in a snowscape with fog, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Morning Glory pool hot spring in the snow with reflections, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Snow covered bison (Bison bison), Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Red Fox (Vulpes vulpes) (Vulpes fulva) in the snow, Grand Teton National Park, Wyoming, United States of America, North America
Mirror Lake in the Tenaya Canyon, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
From Mather Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Mesa Arch, Canyonlands National Park, Moab, Utah, United States of America, North America
Rock formations in Canyonlands National Park, Moab, Utah, United States of America, North America
Rock formations in Canyonlands National Park, Moab, Utah, United States of America, North America
Cloudy sunrise in Canyonlands National Park, Moab, Utah, United States of America, North America
Man overlooking the landscape in Canyonlands National Park, Moab, Utah, United States of America, North America
Half Dome mountain catches the last glow of sunset reflected in the Merced river in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Grand Prismstic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View from Panorama Point across valley to rugged cliffs of the Waterpocket Fold, sunset, Capitol Reef National Park, Utah, United States of America, North America
View by moonlight over Badwater Basin to the Panamint Range, Dante's View, Death Valley National Park, California, United States of America, North America
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
Hall of Mosses rainforest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Devils Canyon, Arches National Park, Moab, Utah, United States of America, North America
El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Mountain rising above low-hanging clouds at Denali Parks Highway in autumn, near Teklanika River Campground, Denali National Park, Alaska, United States of America, North America
Triple Lakes, Denali National Park, Alaska, United States of America, North America
Canyon overlook, Zion National Park, Utah, United States of America, North America
View of the Watchman down the Virgin River, Zion National Park, Utah, United States of America, North America
Canyon overlook, Zion National Park, Utah, United States of America, North America
Canyon overlook in Zion National Park, Utah, 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
Wizard Island in Crater Lake, the deepest lake in the United States, Crater Lake National Park, Oregon, United States of America, North America
Views from the Skyline Trail of Mount Rainier National Park, Washington State, United States of America, North America
Teddy bear cholla (Cylindropuntia bigelovii), at sunrise in Joshua Tree National Park, Mojave Desert, California, United States of America, North America
A ridge in the Devil's Playground of crumbling hoodoos that resemble Goblins,Petrified Forest National Park, Arizona, United States of America, North America
Hills of Demons and Fallen Angels, The Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
Adult harbor seal (Phoca vitulina), hauled out on ice in Glacier Bay National Park, Alaska, United States of America, North America
Steller sea lion (Eumetopias jubatus), haul out site, South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Alaska, 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
Steamboat Geyser, the worlds tallest active geyser, steaming in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Fall colors in Mount Rainier National Park, Washington State, United States of America, North America
Fall colors throughout Mount Rainier National Park, Washington State, United States of America, North America
An adult American red squirrel (Tamiasciurus hudsonicus) in the trees in Denali National Park, Alaska, 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
Commercial rafters run the Lava Falls Rapid, just before river mile 180, Grand Canyon National Park, Arizona, United States of America, North America
Popcorn in the main cave 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
Stalactites in the main cave at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Picnic area behind the Powell Memorial at Grand Canyon National Park, Arizona, United States of America, North America
Couple at Grand Teton National Park, Jackson, Wyoming, United States of America, North America
Woman and child at Grand Teton National Park, Jackson, Wyoming, United States of America, North America
Grand Teton National Park waters, Wyoming, United States of America, North America
Grand Teton National Park plains and mountains, Jackson, Wyoming, United States of America, North America
Park Avenue, Arches National Park, Moab, Utah, United States of America (U.S.A.), North America
A pair of mule deer (Odocoileus hemionus) grazing on a hillside in Yellowstone National Park, Wyoming, United States of America, North America
An adult male dusky grouse (Dendragapus obscurus), displaying in Yellowstone National Park, Wyoming, United States of America, North America
Alert mule deer (Odocoileus hemionus) stares at the camera, Grand Teton National Park, Wyoming, United States of America, North America
Hoodoos, vegetation and snow with a distant view on a winter's late afternoon, Bryce Point, Bryce Canyon National Park, Utah, 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
Jogging along a dune's ridge in White Sands National Park, New Mexico, United States of America, North America
The curve of a sand dune at sunset in White Sands National Park, New Mexico, United States of America, North America
Whirligig Geyser runoff, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cathedral Group of Mount Teewinot, Mount Owen and Grand Teton reflected in the Snake River, Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
Golden Gate Canyon, 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
Ponderosa pine tree, Zion National Park in autumn, Utah, United States of America, North America
Trees and shadows in the snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Four trumpeter swans (Cygnus buccinator), on the river with reflection, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Badlands National Park, South Dakota, United States of America, North America
White Sands National Park near Alamogordo, New Mexico, United States of America, North America
Jumping off a sand dune in White Sands National Park, New Mexico, United States of America, North America
Double O Arch, Devils Garden, Arches National Park, Utah, United States of America, North America
Moonrise over Bryce Canyon Amphitheater from Sunrise Point, Bryce Canyon National Park, Utah, United States of America, North America