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Enjoying the view from Angels Landing, Zion National Park, Utah, United States of America, North America
Hikers on the trail to Angels Landing, Zion National Park, Utah, United States of America, North America
Delicate Arch, Arches National Park, Moab, Utah, United States of America, North America
Steller's jay (Cyanocitta stelleri), Rocky Mountain National Park, Colorado, United States of America, North America
Valley of Ten Thousand Smokes with ignimbrite of 1912 eruption, Griggs volcano behind, Katmai National Park, Alaska, USA, North America
Sentinel Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Teton Range, footbridge and pines with reflections, Bradley Lake, Grand Teton National Park, Wyoming, United States of America, North America
Eruption of Castle Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
First light on the hills, Zion National Park, Utah, United States of America, North America
Lava flowing from Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, The Big Island, Hawaii, United States of America, North America
Male Yellow-Headed Blackbird (Xanthocephalus xanthocephalus), Yellowstone National Park, Wyoming, United States of America, North America
Alpine Shooting Star (Dodecatheon alpinum), Yellowstone National Park, Wyoming, United States of America, North America
Mount McKinley (Mount Denali), Denali National Park and Preserve, Alaska, United States of America, North America
Bison (Bison bison) bull in the winter, Yellowstone National Park, UNESCO World Heritage Site, 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
North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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
The moon rising, Glacier National Park, Montana, United States of America, North America
Mountain goat (Oreamnos americanus) nanny and kid, Glacier National Park, Montana, United States of America, North America
Tlingit Housepost in Sitka National Historical Park, Sitka, Baranof Island, Southeast Alaska, United States of America, North America
Sandstone hoodoos in Bryce Amphitheater, sunrise with low mist, Bryce Canyon National Park, Utah, United States of America, North America
Mountains and a stream through the tundra in fall color, Denali National Park and Preserve, Alaska, United States of America, North America
Reflections in pools among the sandstone, Zion National Park, Utah, United States of America, North America
Wolf lichen (Letharia vulpina), on Sugar Pines (Pinus lambertiana), Tuolumne Grove of Giant Sequoias, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, California, United States of America, North America
Upper and Lower Yosemite Falls, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, California, United States of America, North America
Sandstone formations, Capitol Reef National Park, Utah, United States of America, North America
Two bison (Bison bison) calves, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mother brown bear and her cub, Sequoia National Park, California, United States of America, North America
Bryce Canyon National Park Utah, United States of America, North America
Common raven (Corvus corax) pair, Yellowstone National Park, Wyoming, United States of America, North America
Uinta ground squirrel (Urocitellus armatus) with nesting material, Yellowstone National Park, Wyoming, United States of America, North America
American avocet (Recurvirostra americana), Yellowstone National Park, Wyoming, United States of America, North America
Firefighting helicopter fighting the Dog Rock wildfire above the smoke filled forests of 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
Blue Mesa, Petrified Forest National Park, Arizona, USA
Griggs volcano overlooks Valley of Ten Thousand Smokes filled by ash in 1912 eruption of Katmai, Katmai Volcano National Park, Alaska, USA, North America
Tourists in North Window, Arches National Park, Utah, USA, North America
Mesa Arch at sunrise, Canyonlands National Park, Utah, United States of America (U.S.A.), North America
View from Yavapai Point, in evening light, Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America
Moose (Alces alces) cow in pond breaks from filter feeding and stares at camera, Grand Teton National Park, 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 Canyon of the Gunnison National Park, Gunnison River deep in the canyon, Colorado, United States of America, North America
Pueblo Bonito Chaco Culture National Historical Park scenery, New Mexico, United States of America, North America
Sunset on Lake Quinault, Olympic National Park, UNESCO World Heritage Site, Washington. United States of America, North America
River and colourful foliage in the Indian summer, Great Smoky Mountains National Park, UNESCO World Heritage Site, Tennessee, 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
River otter (Lutra canadensis) mother and two pups, Yellowstone National Park, Wyoming, United States of America, North America
Black Bear (Ursus americanus) sow climbing a tree, 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
Bull elk (Cervus canadensis) feeding in the winter, Yellowstone National Park, Wyoming, United States of America, North America
Hiker on the sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, 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
Red leaves on a big tooth maple (Acer grandidentatum) near a Ponderosa pine (Pinus ponderosa) trunk in the fall, Zion National Park, Utah, United States of America, North America
Small bush in the wash near a sandstone butte, Capitol Reef National Park, Utah, United States of America, North America
Johns Hopkins Glacier calving, Fairweather Range, Glacier Bay National Park and Preserve, Southeast Alaska, 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
Tent illuminated under the night sky, Rocky Mountain National Park, Colorado, United States of America, North America
Siltstone eroded formations of Zabriske Point, Furnace Creek, Death Valley National Park, California, United States of America, North America
Lone Ponderosa pine atop a sandstone formation at first light, Zion National Park, Utah, 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
White Mountain National Park, New Hampshire, New England, United States of America, North America
Panoramic photo of Court of the Patriarchs, Abraham Peak, Isaac Peak, Mount Moroni and Jacob Peak, Zion National Park, Utah, United States of America, North America
Grizzly bear (Ursus arctos horribilis), Glacier National Park, Montana, United States of America, North America
Tourists at Mather Point, early morning, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Mountain bluebird (Sialia currucoides) with a grub, Yellowstone National Park, Wyoming, United States of America, North America
Western false Solomon's seal (false Solomon's seal) (Solomon's plume) (treacleberry) (false spikenard) (Maianthemum racemosum), Glacier National Park, Montana, United States of America, North America
Bison (Bison bison) bull, Yellowstone National Park, Wyoming, United States of America, North America
Rock formations, Chesler Park, The Needles district, Canyonlands National Park, Utah, United States of America, North America
Pronghorn (Antilocapra americana) buck, Yellowstone National Park, Wyoming, United States of America, North America
Excelsior Geyser Crater, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Black bear (Ursus americanus) in the snow, Yellowstone National Park, Wyoming, United States of America, North America
Three black bear (Ursus americanus) cubs of the year, Yellowstone National Park, Wyoming, United States of America, North America
Bridalveil Fall in spring Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
The Narrows of the Virgin River in the fall, Zion National Park, Utah, United States of America, North America
Unicorn Peak reflected in Tuolumne Grove seasonal ponds, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Snow-covered mountain in the winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Traffic on Trans Canada Highway 1, Canadian Rockies, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America
Delicate Arch with rising sun, Arches National Park, Utah, United States of America, North America
Sunset reflections on Tuolumne Meadows in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Bryce Canyon, Bryce Canyon National Park, Utah, United States of America, North America
Sandy beach, Fort Jefferson, Dry Tortugas National Park, Florida, United States of America, North America
Canyonlands National Park, Utah, United States of America, North America
Lower Falls, Grand Canyon, Yellowstone National Park, Wyoming, USA
Sand dunes, Death Valley National Park, California, USA, North America
Visitors in the Giant Forest, Sequoia National Park, California, United States of America (U.S.A.), North America
Christine Falls, Mount Rainier National Park, Washington state, United States of America, North America
Eruption of Riverside Geyser, Firehole River, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grand Geyser erupts and steam blocks the sun, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Black bear (Ursus americanus) sow, Yellowstone 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
Mountain Bluebird (Sialia currucoides) male, Yellowstone National Park, Wyoming, United States of America, North America
Two Bison (Bison bison) bulls sparring, Yellowstone National Park, Wyoming, United States of America, North America
Female Mountain Bluebird (Sialia currucoides) with food at the nest, Yellowstone National Park, Wyoming, United States of America, North America
Saguaro cactus, Saguaro National Park, Tuscon Mountain District west unit, Tucson, Arizona, United States of America, North America
Red fox (Vulpes vulpes) (Vulpes fulva), Denali National Park and Preserve, Alaska, United States of America, North America
Bighorn sheep (Ovis canadensis) in the winter, 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
Hikers on the sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
Coyote (Canis latrans) in the snow, Yellowstone National Park, Wyoming, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America