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Commercial rafters run the Lava Falls Rapid, just before river mile 180, Grand Canyon National Park, Arizona, United States of America, North America
A western honey bee (Apis mellifera), on a strawberry cactus (Echinocereus enneacanthus), Big Bend National Park, Texas, United States of America, North America
A view from the Mossy Cave Trail of red rock and hoodoos, Bryce Canyon National Park, Utah, United States of America, North America
Merced River, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Picnic area behind 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
Grinnell Point and Swiftcurrent Creek, Glacier National Park, Montana, United States of America, North America
Various hoodoos in Angels Garden at Petrified Forest National Park, Arizona, United States of America, North America
Grand Teton National Park hills, Jackson, Wyoming, United States of America, North America
Grand Teton National Park plains and mountains, Jackson, Wyoming, United States of America, North America
Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Elk, Yellowstone National Park, Wyoming, United States of America, North America
Hot Springs, Lower Geyser Basin, Yellowstone National Park, Wyoming, United States of America, North America
Bryce Canyon from Bryce Point, Bryce Canyon National Park, Utah, United States of America, North America
Grand Canyon view from Moran Point on a cloudy day with the clouds floating inside the canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Virgin River Narrows, Zion National Park, Utah, United States of America, North America
Colourful pinnacles and hoodoos on the Peekaboo Trail in Bryce Canyon National Park, Utah, 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
Willow Flats and Teton Range, Grand Tetons National Park, Wyoming, United States of America, North America
Arches National Park, Moab, Grand County, Utah, United States of America, North America
Hiking in White Sands National Park, New Mexico, United States of America, North America
A man exploring the vast landscape of White Sands National Park, New Mexico, United States of America, North America
River Otter (Lutra canadensis), Yellowstone National Park, Wyoming, United States of America, North America
Black Bear (Ursus americanus) cub of the year, Yellowstone National Park, Wyoming, United States of America, North America
One of the few petrified trees almost intact, The Onyx Bridge in Petrified Forest National Park, Arizona, United States of America, North America
One of the few petrified trees almost intact, The Onyx Bridge in Petrified Forest National Park, Arizona, United States of America, North America
Sunrise at Mesa Arch with glowing arch and sunburst, Canyonlands National Park, Utah, United States of America, North America
Stone wall of the Window section, Arches National Park, Utah, United States of America, North America
Bull moose (Alces alces) close up in laughing pose, Grand Teton National Park, Wyoming, United States of America, North America
Pronghorn antelope (Antilocapra americana) in golden grass, Grand Teton National Park, Wyoming, United States of America, North America
Bull moose (Alces alces), in the snow with open mouth, 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
Double Arch, Windows section, Arches National Park, Utah, USA, North America
Snowscape of winding river and trees, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
American bison (Bison Bison) in a driving snow storm, Badlands National Park, South Dakota, United States of America, North America
American pika (Ochotona princeps) eating, Yellowstone National Park, Wyoming, United States of America, North America
Columbian ground squirrel (Citellus columbianus) eating, Glacier National Park, Montana, United States of America, North America
The Organ with rough mulesears (Wyethia scabra), Arches National Park, Utah, United States of America, North America
Bridesveil Falls with rainbow, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
A view of the highest mountain in North America, snow covered Denali, Denali National Park, Alaska, United States of America, North America
Bison (Bison bison) in snow with geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Mount Foraker in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
Lone tree in snow dune, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) cub, Katmai National Park and Preserve, Alaska, United States of America, North America
Braided river in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
A moving rock at the Racetrack, a playa or dried up lakebed, in Death Valley National Park, California, United States of America, North America
Delicate Arch under a blue sky, Arches National Park, Utah, United States of America, North America
Sunburst over a sandy dune, Arches National Park, Utah, United States of America, North America
Starstreaks over rock formations, Canyonlands National Park, Utah, USA, North America
Small American black bear (Ursus americanus) with rare white chest markings, on the Big Trees trail, Round Meadow, Sequoia National Park, Sierra Nevada, California, United States of America, North America
Lake Louise, Banff National Park, UNESCO World Heritage Site, Rocky Mountains, Alberta, Canada, North America
Autumn colours of Lake McDonald, Glacier National Park, Montana, United States of America, North America
Reflection Lake, Mount Rainier National Park, Washington State, United States of America, North America
View of Grand Canyon from the south cliffs of Cape Final on the North Rim with Unkar Creek below and right of centre the pointed peak of Freya's Castle, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Angel's Window at Cape Royal on North Rim above Unker Creek near sundown, with smoke from a wildfire creating brown haze on the horizon, Gand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Jackson Lake in the Teton range in the Grand Teton National Park, Wyoming, United States of America, North America
Colorado River, Canyonlands National Park, Utah, United States of America, North America
Clouds reflecting in the water at Jersey Cove, Cape Breton Highlands National Park, Cape Breton Island, Nova Scotia, Canada, North America
Woman admiring the landscape, Canyonlands National Park, Moab, Utah, United States of America, North America
Rock formation, Green River Overlook, Canyonlands National Park, Moab, Utah, United States of America, North America
Yosemite Valley and Bridalveil Fall from Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, 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
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
Humpback whale (Megaptera novaeangliae) at sunset with rainbow in Glacier Bay National Park, Alaska, United States of America, North America
Canyon overlook, Zion National Park, Utah, United States of America, North America
Canyon Overlook, Zion National Park, Utah, United States of America, North America
A winter sunrise view of Grand Canyon Arizona from Bright Angel Trail on the South Rim just past the second tunnel, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Views of the Nisqually Glacier retreat from the Skyline Trail, Mount Rainier National Park, Washington State, 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 the rapids in a raft on the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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
The Bow Rock of the formation called Sinking Ship in Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Broken Arch, Arches National Park, Moab, Utah, United States of America, North America
Badwater Basin, Death Valley National Park, California, 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
Colter Lake in Grand Teton National Park, Wyoming, United States of America, North America
A view of the Bryce amphitheater from the rim at Bryce Canyon National Park, Utah, 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
Colorful view overlooking Mount Rainier National Park, Washington State, United States of America, North America
Chuckwalla cholla Cholla Cactus Garden, Joshua tree National Park, California USA
Chuckwalla cholla Cholla Cactus Garden, Joshua tree National Park, California USA
Chuckwalla cholla Cholla Cactus Garden, Joshua tree National Park, California USA
Pink sunset sky above Yosemite Valley from Glacier Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Mountain reflections in the tranquil waters of Tenaya Lake in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
A deep dropoff at Grand Canyon called Loki's Abyss east of Thor's Hammer Overlook, with Loki's Rock just right of center, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
A hiker watching the sun go down west of Moran Point at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An adult male desert spiny lizard (Sceloporus magister), under a ledge in Grand Canyon National Park, Arizona, United States of America, North America
Red rock formations known as hoodoos in Bryce Canyon National Park, Utah, United States of America, North America
Red rock formations known as hoodoos in Bryce Canyon National Park, Utah, United States of America, North America
Huge trees growing in a slot canyon in Bryce Canyon National Park, Utah, United States of America, North America
Red rock formations known as hoodoos in Bryce Canyon National Park, Utah, 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
Popcorn 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
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
The burial site and memorial for Charles Brant who died in 1921 and his wife, who lived and worked in the Grand Canyon since it became a national park, Grand Canyon, Arizona, United States of America, North America
Landscape Arch, 92 ft. high, 306 ft. span, Arches National Park, Utah, USA, North America
Rock Hoodoos from Sunset Point, Bryce Canyon National Park, Utah, USA, North America
Sunset, Tunnel View, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America