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Inside the Big Room at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Inside the Big Room at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Entrance to the main cave at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Merced River, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
The Powell Memorial at Grand Canyon National Park, Arizona, United States of America, North America
Grand Canyon viewed from Pima Point at sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bison (Bison bison), Theodore Roosevelt National Park, North Dakota, United States of America, North America
Virgin River flowing through Court of the Patriarchs, Zion National Park, Utah, United States of America, North America
A rocky peninsula off the cliffs of Grandview Point at Grand Canyon South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Canyonlands National Park in winter, Utah, United States of America (U.S.A.), North America
Storm approaches, autumn (fall) leaves and drainage ditch with Mormon Row barn, Grand Teton National Park, Wyoming, United States of America, North America
Hazy Teton Range and pine trees near Phelps Lake, Grand Teton National Park, Wyoming, United States of America, North America
Adult anhinga (Anhinga anhinga) at sunset in Shark Valley, Everglades National Park, Florida, United States of America, North America
Half Dome at sunset, Olmsted Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Soda Butte Creek at dawn with snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Bryce Canyon from Bryce Point, Bryce Canyon National Park, Utah, United States of America, North America
View from Angels Landing, Zion National Park, Utah, United States of America, North America
Whirligig Geyser runoff, Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Tourists in backlight waiting for sunset, Haleakala National Park, Maui, Hawaii, United States of America, Pacific
Volcanic lava stream in the Hawaii Volcanoes National Park, UNESCO World Heritage Site, Big Island, Hawaii, United States of America, Pacific
Sunrise eruption of Old Faithful geyser with stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Morning Glory Pool with snow and reflections, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Arches National Park, Moab, Grand County, Utah, United States of America, North America
Two Bison (Bison bison) bulls sparring, Yellowstone National Park, Wyoming, United States of America, North America
Bull elk (Cervus canadensis), along the Madison River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Wildrose Charcoal Kilns, built in 1877 to produce charcoal for the mines, Death Valley National Park, California, United States of America, North America
The Salt Flats of Badwater Basin, the lowest point in North America, Death Valley National Park, California, United States of America, North America
Bull elk (Cervus canadensis) fighting in rut in Rocky Mountain National Park, Colorado, 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
Close up view of canyon through Mesa Arch with glowing arch, Canyonlands National Park, Utah, United States of America, North America
Pronghorn antelope (Antilocapra americana) in golden grass, Grand Teton National Park, Wyoming, United States of America, North America
Landscape Arch with sunburst through tree, Arches National Park, Utah, United States of America, North America
Delicate Arch with sun and clouds at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Green heron (Butorides virescens), perching over water beside the Anhinga Trail, Everglades National Park, Florida, United States of America, North America
Grizzly Bear (Ursus arctos horribilis), Yellowstone National Park, Wyoming, United States of America, North America
Central Western whiptail (Cnemidophorus tigris septentrionalis), Arches National Park, Utah, United States of America, North America
Mountain goat (Oreamnos americanus) eating, Glacier National Park, Montana, United States of America, North America
Trees reflected in thermal feature in the snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Common Raven (Corvus corax), Bryce Canyon National Park, Utah, United States of America, North America
Sunset at the Salt pan polygons, Badwater Basin, 282ft below sea level and the lowest place in North America, Death Valley National Park, California, United States of America, North America
Manly Beacon and the Siltstone eroded foothills formations at Zabriske Poin at sunrise, Furnace creek, Death Valley National Park, California, United States of America, North America
Sunrise eruption of Old Faithful geyser with stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Braided river in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
Night photo of stars, the Racetrack, a playa or dried up lakebed, in Death Valley National Park, California, United States of America, North America
View of the Petrified Forest National Park from the Long Logs Trail on the south end of the park, Arizona, United States of America, North America
Petroglyphs, Petrified Forest National Park, Arizona, United States of America, North America
Hurricane Ridge, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
Wild roses with rocks on coastline in the background on Mount Desert Island, Acadia National Park, Maine, New England, United States of America, North America
Uncle Jim Point viewed from Bright Angel Point on the North Rim of Grand Canyon at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An overlook along the Transept Trail at Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An overlook along the Transept Trail with Oza Butte on the right at Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Point Imperial in Grand Canyon North Rim viewed from the summit of Saddle Mountain, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Coyote (Canis latrans) running through the snow, Yellowstone National Park, Wyoming, United States of America, North America
Evergreen trees in the snow with a meandering stream, Grand Teton National Park, Wyoming, United States of America, North America
Lone evergreen tree in the snow with a meandering stream, Grand Teton National Park, Wyoming, United States of America, North America
View over the cliffs of the Zion National Park and the Angel's Landing path, Zion National Park, Utah, United States of America, North America
Black bear (Ursus americanus) sow and three cubs of the year, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yosemite Falls, highest waterfall, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
From Lipan Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
From Turnout near Lipan Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Rock formations in Canyonlands National Park, Moab, Utah, United States of America, North America
Hiker photographing on the Queens Garden Trail, Bryce Canyon National Park, Utah, United States of America, North America
An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America
Deer wandering Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Woman at Mormon Row and Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Woman at Mormon Row and Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Schwabacher landing, Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Oxbow Bend, Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Hall of Mosses rainforest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Park Avenue, Arches National Park, Moab, Utah, United States of America, North America
Arches National Park, Moab, Utah, United States of America, North America
Elephant Butte, Arches National Park, Moab, Utah, United States of America, North America
Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Pecos National Historical Park, New Mexico, United States of America, North America
Canyon overlook, 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
A sign along the Bright Angel Trail in Grand Canyon warning that the plants in this area are very fragile, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Wizard Island in Crater Lake, the deepest lake in the United States, Crater Lake National Park, Oregon, United States of America, North America
Teddy bear cholla (Cylindropuntia bigelovii), at sunrise in Joshua Tree National Park, Mojave Desert, California, United States of America, North America
Shooting rapids in a kayak on the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Marble Canyon along the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The cliffs overlooking the First Forest at Petrified Forest National Park, Arizona, United States of America, North America
Adult female sea otter (Enhydra lutris), hauled out on ice in Glacier Bay National Park, Southeast Alaska, United States of America, North America
Badwater Basin, Death Valley National Park, California, United States of America, North America
Beautiful sight on The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Ancient Indian Ruins on the edge of a cliff east of Papago Point at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A view of the hoodoos from the Fairyland Trail in Bryce Canyon National Park, Utah, United States of America, North America
A young brown bear (Ursus arctos) with a dead salmon at Lake Clark National Park and Preserve, Alaska, United States of America, North America
A monsoon storm rolling across Grand Canyon between Zuni Point and Papago Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An adult female bighorn sheep (Ovis canadensis nelsoni), with two lambs in Grand Canyon National Park, Arizona, United States of America, North America
An adult Scotts oriole (Icterus parisorum), Big Bend National Park, Texas, United States of America, North America
A waterfall running through the Mossy Cave Trail in Bryce Canyon National Park, Utah, United States of America, North America
Floe stone in the main cave at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Stalactites in the main cave at Carlsbad Caverns National Park, UNESCO World Heritage Site, located in the Guadalupe Mountains, New Mexico, United States of America, North America
Hearst Hill viewed from across Hance Canyon on the South Rim of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Grand Prismatic Spring and bacterial mats, Midway Geyser Basin, Yellowstone National Park, Teton County, Wyoming, United States of America, North America
Bryce Canyon from Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America