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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
Sunrise over Crater Lake and Wizard Island, Crater Lake National Park, Oregon, United States of America, North America
Black Bear (Ursus americanus) sow and cub, Yellowstone National Park, Wyoming, United States of America, North America
Young elk (Cervus canadensis), crossing amongst traffic along the Madison River, Yellowstone National Park, Wyoming, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America
Mount Hunter, Denali National Park, Alaska, United States of America, North America
Isis Temple picks up the first light of the day as the sun rises on the Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Mesa Verde National Park, Fire Temple, UNESCO World Heritage Site, Colorado, 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
Chaco Culture National Historic Park, World Heritage Site, Fajada Butte, UNESCO World Heritage Site, New Mexico, United States of America, North America
Chaco Culture National Historic Park, World Heritage Site, Fajada Butte, UNESCO World Heritage Site, New Mexico, United States of America, North America
Old mill building, Cades Cove, Great Smoky Mountains National Park, Tennessee, 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
Small American black bear (Ursus americanus) with cinnamon or blond colouring, digging tree bark for insects, Crescent Meadow trail, Sequoia National Park, Sierra Nevada, California, United States of America, North America
Islands in the Sky, Canyonlands National Park, Utah, United States of America, North America
Sunrise in the badlands, Theodore Roosevelt National Park, North Dakota, United States of America, North America
Yellow-headed blackbird (Xanthocephalus xanthocephalus), Yellowstone National Park, Wyoming, United States of America, North America
Bull elk (Cervus canadensis) in velvet running, Yellowstone National Park, Wyoming, United States of America, North America
Bull elk (Cervus canadensis) eating pine needles, Yellowstone National Park, Wyoming, United States of America, North America
Firehole Spring, Firehole Lake Drive, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Fog among a hillside with evergreens, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bison (Bison bison), Yellowstone National Park, Wyoming, United States of America, North America
Smoke from the Dog Rock wildfire in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Sunset at Cape Royal, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
T. A. Moulton Barn, Mormon Row, Grand Teton National Park, Wyoming, United States of America, North America
The Fairweather Range reflected in calm water, Fern Harbour, Glacier Bay National Park, Alaska, United States of America
Praising the sunset over the Pacific Ocean, Rialto Beach, Olympic National Park, Washington State, United States of America (U.S.A.), North America
Colorado River, Canyonlands National Park, Utah, United States of America, North America
Mormon Pioneer Wagon, Capitol Reef National Park, Utah, United States of America, North America
Tourists watching Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Upper Falls, Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Castle Geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Copy of The Declaration of Independence in Free Quarker Meeting House, Independence National Historical Park, Philadelphia, Pennsylvania, United States of America, North America
Copy of The Declaration of Independence in Free Quarker Meeting House, Independence National Historical Park, Philadelphia, Pennsylvania, 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
Black bear (Ursus americanus) sow and two cinnamon yearling cubs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Moose (Alces alces) calf on a winter morning, Grand Teton National Park, Wyoming, United States of America, North America
Sedimentary layers of bluish bentonite clay with petrified wood, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
Sedimentary layers of bluish bentonite clay, The Tepees, Petrified Forest National Park, Arizona, United States of America, North America
Pool in slick rock at dawn, Zion National 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
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
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Two blacktail prairie dog (Cynomys ludovicianus) eating, Wind Cave National Park, South Dakota, United States of America, North America
Cinnamon black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
Hiker resting by the Faithful Couple, Giant Sequoia trees (Sequoiadendron giganteum), Mariposa Grove, Southern Yosemite, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, California, United States of America, North America
Snake River at the Schwabacher Landing, Grand Teton National Park, Wyoming, United States of America, North America
Salamander, Sequoia National Park, California, United States of America, North America
Old barn dating from approx 1890s, west of Glacier National Park, Montana, United States of America, North America
Cinnamon black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America
Tenaya Lake in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite Valley choked with smoke from the Dog Rock Wildfire, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yellowstone River and Falls, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone Falls and canyon, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Geothermal steam, frosted trees and snow-free hot ground in Norris Basin in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America
Double Arch, Arches 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
Woman taking pictures, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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
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
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Low clouds glowing orange at sunrise, Crater Lake National Park, Oregon, United States of America, North America
Shi Shi Beach, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Porcupine caribou (Grant's caribou) (Rangifer tarandus granti) cow, Denali National Park, Alaska, United States of America
View over the Shenandoah National Park with beautiful foliage in the Indian summer, Virginia, United States of America, North America
Red fox (Vulpes vulpes) in the snow, Grand Teton National Park, Wyoming, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Petrified logs from the late Triassic period, 225 million years ago, Long Logs Trail, Petrified Forest National Park, Arizona, United States of America, North America
Cracks in eroded badlands, Badlands National Park, South Dakota, United States of America, North America
Big horn sheep, Glacier National Park, Montana, United States of America, North America
Mesa Verde National Park, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Bare tree among boulders at sunrise, Joshua Tree National Park, California, United States of America, North America
Mesa Verde National Park, Cliff Palace, UNESCO World Heritage Site, Colorado, 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
Box elder (boxelder maple) (maple ash) (Acer negundo) with yellow leaves in the fall, 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
Lone hiker near Yavapai Point Overlook, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Everglades National Park, UNESCO World Heritage Site, Florida, 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
Dusky grouse (blue grouse) (Dendragapus obscurus) hen, Glacier National Park, Montana, United States of America, North America
Male yellow-headed blackbird (Xanthocephalus xanthocephalus) dislaying, Yellowstone National Park, Wyoming, United States of America, North America
Chapel of the Transfiguration, Grand Teton National Park, Wyoming, United States of America, North America
Bison (Bison bison) cow and calf, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Unicorn and Cathedral Peaks reflected in the Tuolumne River, Tuolumne Meadows, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
The Three Brothers mountains reflected in the tranquil waters of the River Merced, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Sunset above Half Dome, viewed from Olmsted Point, in autumn, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Woman Hiking, Badlands National Park, South Dakota, United States of America, North America
Bison (Bison bison) bull covered with snow in snowfall in the winter, Yellowstone National Park, Wyoming, United States of America, North America
Painted Desert, Death Valley National Park, California, United States of America, 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
Crater Lake and Wizard Island at dawn, Crater Lake National Park, Oregon, United States of America, North America
Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mud Volcano Area, 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
Cinnamon Black Bear (Ursus americanus) yearling cub climbing a tree, 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
North American elk (Cervus Elaphus) and sand dunes, Great Sand Dunes National Park and Preserve, Sangre Cristo Mountains in background, Colorado, United States of America, North America