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Red leaves on a big tooth maple (Acer grandidentatum) in the fall, Zion National Park, Utah, 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
Johns Hopkins Inlet, Fairweather Range, Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America
A Red Fox walks through the sand shortly before sunset on Sandy Hook, part of the Gateway National Recreation Area, a US National Park. Sandy Hook is a barrier peninsula on the Atlantic Ocean.
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, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Cinnamon black bear (Ursus americanus), 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
Twilight at Tioga Lake, 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
Sunset at Cape Royal, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Black tarmac road, Death Valley National Park, 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
Forest fire, Glacier National Park, Montana, United States of America, North America
T. A. Moulton Barn, Mormon Row, Grand Teton National Park, Wyoming, United States of America, North America
Tetons and Jenny Lake, Grand Teton National Park, Wyoming, USA
Elk, Yellowstone National Park, Wyoming, USA
El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, 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
Tourists watching Old Faithful Geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Lenticular clouds over Moose Pond, autumn, Grand Teton National Park, Wyoming, United States of America, North America
Black Bear (Ursus americanus) sow and cub, Yellowstone National Park, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis), Yellowstone National Park, Wyoming, United States of America, North America
Black bear (Ursus americanus) cub of the year or spring cub, Yellowstone National Park, Wyoming, United States of America, North America
Pool in slick rock at dawn, 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
Chaco Culture National Historic Park, World Heritage Site, Fajada Butte, UNESCO World Heritage Site, New Mexico, 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
Islands in the Sky, Canyonlands National Park, Utah, 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
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
T. A. Moulton Homestead, barn, Mormon Row, Grand Teton National Park, United States of America, North America
Grizzly bear (Ursus arctos horribilis) resting, Yellowstone National Park, Wyoming, United States of America, North America
Teton Range, 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
Smoke from the Dog Rock wildfire in Yosemite National Park, UNESCO World Heritage Site, California, 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
American Kestrel (Sparrow Hawk) (Falco sparverius), male, Yellowstone National Park, Wyoming, United States of America, North America
Greater sage-grouse (Centrocercus urophasianus) in the snow, Grand Teton National Park, 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
The Fairweather Range reflected in calm water, Fern Harbour, Glacier Bay National Park, Alaska, United States of America
Shafer Trail Road, Canyonlands National Park, Utah, United States of America, North America
Double Arch, Arches National Park, Utah, United States of America, North America
Upper Falls, Yellowstone River, 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
Cinnamon Black Bear (Ursus americanus) yearling cub climbing a tree, Yellowstone National Park, Wyoming, 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
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, Spruce Tree House, UNESCO World Heritage Site, 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
Snake River at the Schwabacher Landing, Grand Teton National Park, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis) sow and yearling cub, Glacier National Park, Montana, United States of America, North America
Male Williamson's sapsucker (Sphyrapicus thyroideus) at its nest hole, Yellowstone National Park, Wyoming, United States of America, North America
Female Williamson's sapsucker (Sphyrapicus thyroideus) at its nest hole, Yellowstone National Park, Wyoming, United States of America, North America
Mule deer graze in Tuolumne Meadows near Lembert Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Male yellow-headed blackbird (Xanthocephalus xanthocephalus) dislaying, Yellowstone National Park, Wyoming, 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
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
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
Flooded meadow in Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, 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
View from Schwabacher's Landing across the Snake River to the Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Cliffs and hoodoos lit by late afternoon sun in winter, Paria View, 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
Morning Glory Pool, Upper 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
Bison, Theodore Roosevelt National Park North Unit, Watford, North Dakota, United States of America, North America
Line of Bison (Bison bison) crossing the Lamar River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, 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
Grizzly Bear (Ursus arctos horribilis), Yellowstone National Park, Wyoming, United States of America, North America
Black bear (Ursus americanus) cub of the year or spring cub in a tree, 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
Big horn sheep, Glacier National Park, Montana, United States of America, North America
Red leaves on a big tooth maple branch in the fall, Zion National Park, Utah, 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, Fajada Butte, 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
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
Sunrise in the badlands, Theodore Roosevelt National Park, North Dakota, United States of America, North America
Chapel of the Transfiguration, Grand Teton National Park, 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
Tenaya Lake in Yosemite National Park, UNESCO World Heritage Site, California, 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
El Capitan rising above Yosemite Valley from Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Star trails above Bryce Canyon National Park, Utah, United States of America, North America
River Tuolumne adjacent to Yosemite National Park, California, United States of America, North America
Crater Lake National Park, Oregon, USA
Erupting geyser and Old Faithful Inn, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, 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
Peekaboo Loop Trail sign with snow and rocks lit by early morning winter sun, 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