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The Margerie Glacier, whose face is retreating, in Glacier Bay National Park, Southeast Alaska, United States of America
Detail of a totem pole on display at Sitka National Historical Park in Sitka, Baranof Island, Southeast Alaska, United States of America
Autumn tundra landscape, Broad Pass, Denali National Park, Alaska, USA
Mount Moroni and the Virgin River in autumn, Zion National Park, Utah, USA
Golden cottonwood trees on banks of the Virgin River, Zion National Park, Utah, United States of America (U.S.A.), North America
Balanced Rock at dusk, Arches National Park, Utah, United States of America, North America
Regenerating trees reflected in a frosty and misty Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Sapphire Pool, Biscuit Basin, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone River in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Man looking at Mount Rainier from trail, Mount Rainier National Park, Washington State, United States of America, North America
American Robin (Turdus migratorius), Yellowstone National Park, Wyoming, United States of America, North America
A sandstone butte in Chaco Culture National Historical Park scenery, New Mexico, United States of America, North America
Grizzly bear (Ursus arctos horribilis) sow, Yellowstone National Park, Wyoming, United States of America, North America
The Tetons at dawn after a fresh snow, Grand Teton National Park, Wyoming, United States of America, North America
Bison (Bison bison) cow in the winter, Yellowstone National Park, Wyoming, United States of America, North America
North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bryce Point, Bryce Canyon National Park, Utah, United States of America, North America
Black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
Red fox (Vulpes vulpes) in the snow, Grand Teton National Park, Wyoming, United States of America, North America
Bull elk (Cervus canadensis) feeding in the winter, Yellowstone National Park, Wyoming, United States of America, North America
The Teton Range at dawn after a fresh snow, Grand Teton National Park, Wyoming, United States of America, North America
The arch at White Tank Campground, Joshua Tree National Park, California, United States of America, North America
Hoary marmot (Marmota caligata) eating, Glacier National Park, Montana, United States of America, North America
View from Cape Royal at dusk, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A twisted very old Bristlecone Pine (Pinus longaeva), on sage brush covered slopes of dolomite limestone, in the Ancient Bristlecone Pine Forest Park, Inyo National Forest, Bishop, California, United States of America, North America
Snake River at the Schwabacher Landing, Grand Teton National Park, Wyoming, United States of America, North America
Snake River at the Schwabacher Landing, Grand Teton National Park, Wyoming, United States of America, North America
Porcelain Springs, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pinwheel Geyser, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View of Duck Lake and Yellowstone Lake at dusk from near West Thumb, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Abyss Pool, West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Abyss Pool, West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Coyote (Canis latrans), Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis), Glacier National Park, Montana, United States of America, North America
Green River Overlook, Canyonlands National Park, Utah, United States of America, North America
Last light on Half Dome above Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Two sub-adult grizzly bears (Ursus arctos horribilis), Glacier National Park, Montana, United States of America, North America
Cinnamon-colored black bear (Ursus americanus) walking, Yellowstone National Park, Wyoming, United States of America, North America
Beaver (Castor canadensis) eating an evergreen branch, Yellowstone National Park, Wyoming, United States of America, North America
Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Black bear (Ursus americanus) in the snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Clouds reflected in a pond, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Horseback riding through Bryce Canyon National Park, Utah, United States of America, North America
Lower Falls, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Two Grizzly Bear (Ursus arctos horribilis) cubs of the year or spring cubs playing, Yellowstone National Park, Wyoming, United States of America, North America
Trees on a hillside covered with fog, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone River near Calcite Springs, Yellowstone National Park, UNESCO Wortld Heritage Site, Wyoming, United States of America, North America
Painted Desert, Death Valley National Park, California, United States of America, North America
Sandy beach, Fort Jefferson, Dry Tortugas National Park, Florida, United States of America, North America
Time exposure at night, Joshua Tree National Park, California, United States of America (U.S.A.), North America
Jagged sandstone cliffs above the Virgin River, Zion National Park, Utah, USA
The Queens Garden from Navajo Loop Trail, Bryce Canyon National Park, Utah, USA, North America
Bison (Bison bison), Yellowstone National Park, Wyoming, United States of America, North America
Rocks covered with lichen, Deer Park, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America (U.S.A.), North America
Pines at Mystic Falls, near Biscuit Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Ice encrusted dead trees against clear skies, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mormon Row barn, Antelope Flats, Grand Teton National Park, Wyoming, United States of America, North America
Tourists on boardwalk over the mineral runoff from Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Crested Pool, Upper 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 from the Snake River at Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
Sandstone pinnacles, Chesler Park, The Needles district, Canyonlands National Park, Utah, United States of America, North America
Tundra in fall colors, Denali National Park and Preserve, Alaska, United States of America, North America
River otter (Lutra canadensis), Yellowstone National Park, Wyoming, United States of America, North America
The Teton Range at first light after a fresh snow, Grand Teton National Park, Wyoming, United States of America, North America
Sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
Five Faces Pictograph, Anthropomorph images 700 to 1000 years old, Davis Canyon, Canyonlands National Park, Utah, United States of America, North America
Tree atop a sandstone hill, Zion National Park, Utah, United States of America, North America
Pools in slick rock at dawn, Zion National Park, Utah, United States of America, North America
Wild buffalos in the Roosevelt National Park, North Dakota, United States of America, North America
The northern part of the Roosevelt National Park, North Dakota, United States of America, North America
Bighorn sheep (Ovis canadensis) ram, Glacier National Park, Montana, United States of America, North America
Salt flats near Badwater Basin, Death Valley National Park, California, United States of America, North America
Half Dome from Glacier Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Chaco Culture National Historic Park, World Heritage Site, Hungo Pavi, UNESCO World Heritage Site, New Mexico, United States of America, North America
Aspen trees in autumn below Longs Peak, a mountain above 14000 feet, known as a 14er, Rocky Mountain National Park, Colorado, 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
Red rock cliffs and badlands, Capitol Reef National Park, Utah, United States of America, North America
Two men sitting, Delicate Arch, Arches National Park, Moab, Utah, United States of America, North America
Garden of Eden, Arches National Park, Moab, Utah, United States of America, North America
Mound Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Liberty Cap, a dormant hot spring cone, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis) sow with two yearling cubs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis) sow with a yearling cub, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Canoeing across Bowman Lake, Glacier National Park, Montana, United States of America, North America
Capitol Reef National Park, Utah, United States of America, North America
Afternoon thunderstorm, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Natural Bridge, Bryce Canyon National Park, Utah, United States of America, North America
Half Dome and Clouds Rest mountains from Olmsted Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Female Williamson's sapsucker (Sphyrapicus thyroideus) on a feeding tree, Yellowstone National Park, Wyoming, United States of America, North America
Grizzly Bear (Ursus arctos horribilis) walking, Yellowstone National Park, Wyoming, United States of America, North America
Fog among the mountains and evergreens, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Duck Lake in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Marjorie Glacier in Glacier Bay National Park, Alaska, United States of America, North America
El Capitan reflected in a flood pool, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Inspiration Point, Bryce National Park, Utah, United States of America, North America
Castle Geyser, Yellowstone National Park, Wyoming, USA
Oxbow bend, Snake River and Tetons, Grand Tetons National park, Wyoming, USA
Shores of the Virgin River and winter trees, Pa'rus Trail, Zion National Park, Utah, United States of America, North America
Beauty Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pink sunset sky above Tuolumne Meadows, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America