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Grizzly bear (Ursus arctos horribilis) in the rain, Glacier National Park, Montana, United States of America, North America
Grizzly bear (Ursus arctos horribilis), Glacier National Park, Montana, United States of America, North America
Slimpod shooting star (Dodecatheon conjugens), Yellowstone National Park, Wyoming, United States of America, North America
Fog mingling with evergreen trees, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bison (Bison bison) cow nursing her calf, Yellowstone National Park, Wyoming, United States of America, North America
Cinnamon-colored black bear (Ursus americanus) walking, Yellowstone National Park, Wyoming, United States of America, North America
Last light on Half Dome, photographed from Olmsted Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Desert View Watchtower, Grand Canyon National Park, UNESCO World Heritage Site, Northern Arizona, United States of America, North America
Elk (Cervus canadensis) (wapiti), South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Elk (Cervus canadensis) (wapiti), South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Sandstone cliffs, Capitol Reef National Park, Utah, 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
Half Dome from the Merced River, Yosemite National Park, UNESCO World Heritage Site, California, 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
Tenaya Lake on the Tioga Pass in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Coyote (Canis latrans) in the snow in winter, Yellowstone National Park, Wyoming, United States of America, North America
Landscape Arch, Arches National Park, Utah, United States of America, North America
Temples and Towers of the Virgin, Zion National Park, Utah, United States of America, North America
Golden cottonwood trees on banks of the Virgin River, Zion National Park, Utah, United States of America (U.S.A.), North America
Lake Quinault, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America (U.S.A.), North America
Woman looking over the Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Pines at Mystic Falls, near Biscuit Basin, Yellowstone National Park, UNESCO World Heritage Site, 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
Yellowstone River in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
River otter (Lutra canadensis), 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
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
The Teton Range at dawn after a fresh snow, Grand Teton National Park, Wyoming, United States of America, North America
Pools in slick rock at dawn, Zion National Park, Utah, United States of America, North America
Climbing expedition on Mt McKinley, 6194m, Denali National Park, Alaska, United States of America, North America
View of Grand Canyon west of the historic Watch Tower, managed by the National Park Service, UNESCO World Heritage Site, Arizona, United States of America, North America
The arch at White Tank Campground, Joshua Tree 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
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
Rock formations, The Needles, Canyonlands National Park, Utah, 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
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
Red rock cliffs and badlands, Capitol Reef National Park, Utah, United States of America, North America
The Spectacles (North and South Windows), Arches National Park, Moab, Utah, 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
Mound Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Inspiration Point, Bryce Canyon National Park, Utah, 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
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
Everglades National Park, UNESCO World Heritage Site, Florida, United States of America, North America
Western meadowlark (Sturnella neglecta) singing, Yellowstone National Park, Wyoming, 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
Bull elk (Cervus canadensis) in the snow, Yellowstone National Park, UNESCO World Heritage Site, 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
Black bear (Ursus americanus) in a spring snow storm, Yellowstone National Park, Wyoming, United States of America, North America
Horseback riding through Bryce Canyon National Park, Utah, United States of America, North America
Duck Lake in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Elk (Cervus canadensis) near Lake Village, Yellowstone National Park, Wyoming, United States of America, North America
Firehole Spring, 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
Marjorie Glacier in Glacier Bay National Park, Alaska, United States of America, North America
Detail of a totem pole on display at Sitka National Historical Park in Sitka, Baranof Island, Southeast Alaska, United States of America
Painted Desert, Death Valley National Park, California, United States of America, North America
Zabriskie Point in 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
Bison (Bison bison), Yellowstone National Park, Wyoming, United States of America, North America
Shores of the Virgin River and winter trees, Pa'rus Trail, Zion National Park, Utah, United States of America, North America
Moulton Ranch, Grand Teton National Park, Wyoming, United States of America (U.S.A.), North America
Woman trekking, Sand Dunes Point, Death Valley National Park, California, 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
Ice encrusted dead trees against clear skies, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pueblo Kiva, Pecos National Historical Park, Pecos, New Mexico, 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
Everglades National Park, UNESCO World Heritage Site, Florida, United States of America, North America
Carpenters' Hall, Independence National Historical Park, Old City District, Philadelphia, Pennsylvania, United States of America, North America
Red Fox (Vulpes vulpes) (Vulpes fulva), Yellowstone National Park, Wyoming, United States of America, North America
Red squirrel (spruce squirrel) (Tamiasciurus hudsonicus), Denali National Park and Preserve, Alaska, United States of America
Young beaver (Castor canadensis) swimming, Denali National Park and Preserve, Alaska, United States of America, North America
Alaska Range, Denali National Park and Preserve, Alaska, United States of America, North America
Osprey (Pandion haliaetus) on nest along the Madison River, Yellowstone National Park, Wyoming, United States of America, North America
Bighorn Sheep (Ovis canadensis) ram feeding, Yellowstone National Park, Wyoming, United States of America, North America
Bison (Bison bison) bull in the snow, Yellowstone National Park, Wyoming, United States of America, North America
Sand dunes in the Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
Bryce Point, Bryce Canyon National Park, Utah, United States of America, North America
Saguaro Cactus (Camegiea Gigantea) silhouetted at sunset, West-Tucson Mountain District, Saguaro National Park, Arizona, United States of America, North America
Tenaya Lake on the Tioga Pass, Yosemite National Park, UNESCO World Heritage Site, California, 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) at sunset in the winter, Yellowstone National Park, Wyoming, United States of America, North America
Wild buffalos in the Roosevelt National Park, North Dakota, United States of America, North America
Johns Hopkins Inlet, Fairweather Range, Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America
Sunrise over El Capitan and Yosemite Valley from Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Juniper and boulder, Joshua Tree National Park, California, United States of America, North America