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Black Bear (Ursus americanus) sow and chocolate cub-of-the-year, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bison (Bison bison) calf, Yellowstone National Park, Wyoming, United States of America, North America
Grizzly Bear (Ursus arctos horribilis), Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Adult black-legged kittiwakes (Rissa tridactyla), South Marble Islands, Glacier Bay National Park, Alaska, United States of America, North America
Petroglyphs, Canyon de Chelly National Monument, Arizona, United States of America, North America
Shafer Trail Road, Canyonlands National Park, Utah, United States of America, North America
Crater Lake and Wizard Island at dawn, Crater Lake National Park, Oregon, United States of America, North America
Dead tree trunks, Canary Spring, top Main Terrace, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Shi Shi Beach, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Gunnison River deep in the canyon from Kneeling Camel View Point, Black Canyon of the Gunnison National Park, Colorado, United States of America, North America
Fort Sumter National Monument, Charleston, South Carolina, United States of America, North America
Red Fox (Vulpes vulpes) (Vulpes fulva) vixen and two kits, Yellowstone National Park, Wyoming, United States of America, North America
Hikers break with Mount Foraker on the left and Mount Crosson on the right, in distance, Denali National Park, Alaska, United States of America, North America
Bison (Bison bison) cow and calf, Yellowstone National Park, Wyoming, United States of America, North America
Hikers at Lower Calf Creek Falls, Grand Staircase-Escalante National Monument, Utah, United States of America, North America
Big horn sheep, Glacier National Park, Montana, United States of America, North America
Hoodoo shaped like a duck, Goblin Valley State Park, Utah, United States of America, North America
Red leaves on a big tooth maple (Acer grandidentatum) in the fall, Zion National Park, Utah, United States of America, North America
Chaco Culture National Historic Park, World Heritage Site, Pueblo Bonito, kiva (foreground), UNESCO World Heritage Site, New Mexico, United States of America, North America
Sunset above Yosemite Valley and Half Dome, viewed from Glacier Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Grizzly bear (Ursus arctos horribilis) sow and three cubs of the year, Yellowstone National Park, Wyoming, United States of America, North America
Cinnamon black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
Petroglyphs of riders on horseback hunting an antelope, Canyon de Chelly National Monument, Arizona, United States of America, North America
Dead juniper tree frames Ear of the Wind Arch, Monument Valley Navajo Tribal Park, Utah, United States of America, North America
Grand View Point overlook and juniper tree, Island in the Sky, Canyonlands National Park, Utah, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) among wildflowers, San Juan National Forest, Colorado, United States of America, North America
Two girls with parasols in Burnt Forest, Yellowstone National Park, Wyoming, United States of America, North America
Watch Tower, Colorado River below, Desert View Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bull elk (Cervus canadensis) in velvet running, Yellowstone National Park, Wyoming, United States of America, North America
Turquoise Pool, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Black bear (Ursus americanus) sow and three cubs of the year, Yellowstone National Park, Wyoming, United States of America, North America
House finch (Carpodacus mexicanus), male, Chiricahuas, Coronado National Forest, Arizona, United States of America, North America
Mist surrounding the forest below Unicorn Peak in autumn, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Giant Sequoia (Sequoiadendron giganteum) in a sunlit woodland, Mariposa Grove, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Swift Fox (Vulpes velox) kit, Pawnee National Grassland, Colorado, United States of America, North America
Mount Moran in the winter with snow, Grand Teton National Park, Wyoming, United States of America, North America
Backlit frost-covered cottonwood trees in the winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
T. A. Moulton Barn, Mormon Row, Grand Teton National Park, Wyoming, United States of America, North America
Church ruins, Gran Quivira, Salinas Pueblo Missions National Monument, Salinas Valley, New Mexico, United States of America, North America
Church, Quarai, Salinas Pueblo Missions National Monument, Salinas Valley, New Mexico, United States of America, North America
Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Freezing mists, dawn, West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Cinnamon black bear (Ursus americanus) hangs on a chokeberry branch in autumn (fall), Grand Teton National Park, 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 Moulton Barn on Mormon Row with the Grand Tetons range in background, Antelope Flats Road, Grand Teton National Park, Wyoming, United States of America, North America
Black bear (Ursus americanus) sow and two cinnamon yearling cubs, 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
Hikers descend the curving South Kaibab trail in Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Chaco Culture National Historic Park, World Heritage Site, Pueblo Bonito, kiva (foreground), UNESCO World Heritage Site, New Mexico, United States of America, North America
Acadia National Park, Mount Desert Island, Maine, New England, United States of America, North America
Grizzly bear (Ursus arctos horribilis) in the rain, Glacier National Park, Montana, United States of America, North America
South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Dusky grouse (blue grouse) (Dendragapus obscurus) hen, Glacier National Park, Montana, United States of America, North America
Blacktail prairie dog (Cynomys ludovicianus), Theodore Roosevelt National Park, North Dakota, United States of America, North America
Bison (Bison bison) bull covered with snow in the winter, Yellowstone National Park, Wyoming, United States of America, North America
Granite domes of Yosemite reflected in the calm waters of Tenaya Lake, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
El Capitan and Bridalveil Falls frame Half Dome and Clouds Rest, Yosemite Valley from Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Sandstone formations under clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Dead evergreen tree and sandstone mounds, Zion National Park, Utah, United States of America, North America
John Moulton Barn, Mormon Row, Grand Teton National Park, Wyoming, United States of America, North America
Bison (Bison bison), Theodore Roosevelt National Park, North Dakota, United States of America, North America
Eruption of Riverside Geyser seen from Firehole River bridge, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Moss-covered tree trunks in the rainforest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Wall of Windows lit by early morning sun, silhouetted rock, Peekaboo Loop Trail, Bryce Canyon National Park, Utah, United States of America, North America
Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Badger (Taxidea taxus), Yellowstone National Park, Wyoming, United States of America, North America
Woman hiking near Mount Olympus and Blue Glacier, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Black bear (Ursus americanus) sow and two yearling cubs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bighorn sheep (Ovis canadensis) ram eating in the winter, Yellowstone National Park, Wyoming, United States of America, North America
Scree field on the side of a sandstone butte, Capitol Reef National Park, Utah, United States of America, North America
Looking down onto the inner canyon and Colorado River from Mohave Point as it flows through the Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Chaco Culture National Historic Park, World Heritage Site, Pueblo Bonito, kiva (foreground), UNESCO World Heritage Site, New Mexico, United States of America, North America
Sunset at Locust Point, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Female mountain bluebird (Sialia currucoides) with an insect, Yellowstone 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
Two mountain goat (Oreamnos americanus) kids playing, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Lake Helen and Mount Lassen, 3187 meters, in the background, Lassen Volcanic National Park, California, United States of America, North America
Black bear (Ursus americanus) sow and three cubs of the year, Yellowstone National Park, Wyoming, United States of America, North America
Golden evening sunshine illuminates El Capitan and Half Dome in Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
American Kestrel (Sparrow Hawk) (Falco sparverius), male, Yellowstone National Park, Wyoming, United States of America, North America
Yosemite Valley, with El Capitan and Bridal Veil Falls beneath a beautiful pink dawn sky, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Pink clouds at dawn in the winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Forest fire, Glacier National Park, Montana, United States of America, North America
Butler Wash Achaeological Ruin, Ancestral Pueblo, Butler Wash, Shash Jaa National Monument, Utah, United States of America, North America
View of Giant Sequoias tree in Tuolumne Grove Trail, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Hiking the Pa'rus trail, Zion National Park, Utah, United States of America, North America
Figure shows scale of the trunk of giant sequoia tree in the Giant Forest, Sequoia National Park, California, United States of America (U.S.A.), North America
View from Schwabacher's Landing across the Snake River to the Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Colorado River, Canyonlands National Park, Utah, 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
Bryce Canyon National Park, Utah, United States of America, North America
Rainbow cast by eruption of Riverside Geyser, Firehole River, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
View down Zion Canyon from trail to Angels Landing at dawn, Zion National Park, Utah, United States of America, North America
Female tourist on boardwalk by the Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Slump Block area in Theodore Roosevelt National Park North Unit, Watford, North Dakota, United States of America, North America
Black Bear (Ursus americanus) cub of the year climbing a tree, Yellowstone National Park, Wyoming, United States of America, North America
Cinnamon Black Bear (Ursus americanus) yearling cub climbing a tree, Yellowstone National Park, Wyoming, United States of America, North America
The Martin Luther King Memorial on the National Mall in Washington, D.C., United States of America, North America
Grizzly bear (Ursus arctos horribilis), Yellowstone National Park, Wyoming, United States of America, North America