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Tourists standing in front of the Aialik Glacier, coming off the Harding Ice Field, Kenai Fjords National Park, Alaska, United States of America, North America
Grand Canyon viewed from the cliffs west of Moran Point with Coronado Butte on the far left, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An adult female bighorn sheep (Ovis canadensis nelsoni), in a cave for shade in Grand Canyon National Park, Arizona, United States of America, North America
An adult common side-blotched lizard (Uta stansburiana), on the rocks in Grand Canyon National Park, 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
Elk, Grand Canyon National Park, Arizona, USA
Scenic view of Grand Canyon from Ooh Aah Point on South Kaibab Trail, Grand Canyon National Park, Arizona, USA
Lava stones and Pectol's Pyramid at dusk, Capitol Reef National Park, Utah, Western United States, USA
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
Mirror Lake in the Tenaya Canyon, Yosemite National Park, UNESCO World Heritage Site, California, 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
Balanced Rock, Arches National Park, Utah, USA
Male elk (Cervus canadensis), Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The 'Racetrack' boulders, Death Valley National Park, California, USA
Desert flowers in Arches National Park, Utah, USA, North America
Bryce Canyon from Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America
Grand Teton National Park trails, Wyoming, United States of America, North America
Schwarbacher's Landing, Grand Teton National Park, Wyoming, United States of America (U.S.A.), North America
An adult North American beaver (Castor canadensis) along the shore in Grand Teton National Park, Wyoming, United States of America, North America
An adult Wyoming ground squirrel (Urocitellus elegans), in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Hoodoos and cloudy sky in winter, Rim Trail near Sunrise Point, Bryce Canyon National Park, Utah, United States of America, North America
Elk, Firehole River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Upper and Lower Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Little chapel, Great Smoky Mountains National Park, Tennessee, United States of America, North America
The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America
Coyote (Canis latrans) in snow, Yellowstone National Park, Wyoming, United States of America, North America
First light on the Grand Tetons with reflection at Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
A view of Spire Cove in Resurrection Bay in Kenai Fjords National Park, Alaska, United States of America, North America
Road leading through the Capitol Reef National Park, Utah, United States of America, North America
Sunburst at Mesa Arch, Canyonlands National Park, Utah, United States of America, North America
Glowing arch at Mesa Arch, Canyonlands National Park, Utah, United States of America, North America
Setting sun through Delicate Arch with sunburst, Arches National Park, Utah, United States of America, North America
Badlands through the window, Badlands National Park, South Dakota, United States of America, North America
Glowing arch at Mesa Arch, Canyonlands National Park, Utah, United States of America, North America
California ground squirrel (Citellus beecheyi), Joshua Tree National Park, California, United States of America, North America
Columbian ground squirrel (Citellus columbianus), Glacier National Park, Montana, United States of America, North America
Juvenile gray-crowned rosy-finch (Leucosticte tephrocotis), Glacier National Park, Montana, United States of America, North America
Kiva and other structures at Pueblo Bonito, Chaco Culture National Historic Park, UNESCO World Heritage Site, New Mexico, United States of America, North America
Backlit sandstone hoodoos in Bryce Amphitheater, Bryce Canyon National Park, Utah, United States of America, North America
Willow Ptarmigan (Lagopus lagopus), Katmai National Park and Preserve, Alaska, United States of America, North America
Upper Yosemite Falls, Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, California, United States of America, North America
Rain Forest with small creek, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
Narada Falls, Mount Rainier National Park, Washington State, United States of America, North America
Bryce Canyon from Sunrise Point, Utah, USA
Reflection Lake, Mount Rainier National Park, Washington State, United States of America, North America
Autumn colours of Lake McDonald, Glacier National Park, Montana, United States of America, North America
Jupiter Temple, a ridge on the east side of the North Rim, viewed from Cape Final, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bright Angel Point Bridge on Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View of Brady Peak from the Vista Encantada Picnic area on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Jenny Lake in front of the Teton range in the Grand Teton National Park, Wyoming, United States of America, North America
View over the Zion National Park from Angel's Landing, Zion National Park, Utah, United States of America, North America
Little boat in the bay of Dingwall, Cape Breton Highlands National Park, Cape Breton Island, Nova Scotia, Canada, North America
Hiking the Queens Garden Trail, Bryce Canyon National Park, Utah, United States of America, North America
Mount Redoubt, Lake Clark National Park and Preserve, Alaska, United States of America, North America
A view of the Aialik Glacier, coming off the Harding Ice Field, Kenai Fjords National Park, Alaska, United States of America, North America
Upper Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
An adult tufted puffin (Fratercula cirrhata) roosting on a cliff in Kenai Fjords National Park, Alaska, United States of America, North America
Landscape Arch, Arches National Park, Utah, United States of America, North America
Mesa Arch, Canyonlands National Park, Moab, Utah, United States of America, North America
Elephant Butte, Arches National Park, Moab, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
A view of the Exit Glacier, coming off the Harding Ice Field, Kenai Fjords National Park, Alaska, United States of America, North America
A view of Spire Cove in Resurrection Bay in Kenai Fjords National Park, Alaska, United States of America, North America
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
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
Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Mesquite flat sand dunes in Death Valley National Park, California, United States of America, North America
Zabriskie Point in Death Valley National Park, California, United States of America, North America
View of the braided river leading to Crescent Lake in Lake Clark National Park, Alaska, United States of America, North America
Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, United States of America, North America
Old pilings in Resurrection Bay, gateway to the Kenai Fjords in Kenai Fjords National Park, Alaska, United States of America, North America
Joshua tree (Yucca brevifolia), at night in Joshua Tree National Park, Mojave Desert, California, United States of America, North America
Panorama of a ridge in the Devil's Playground of crumbling hoodoos, Petrified Forest National Park, Arizona, United States of America, North America
Adult North American porcupine (Erethizon dorsatum), climbing a tree, Glacier Bay National Park, Alaska, United States of America, North America
View from Cape Royal at sunrise, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View from Cape Royal, North Rim, 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
Turret Arch, Arches National Park, Utah, United States of America, North America
Grand Canyon viewed before sunset, west of Papago Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Night photography at Blacktail Canyon, just before river mile 121, Grand Canyon National Park, Arizona, United States of America, North America
Flight seeing from Haines over the Fair-weather Range in Glacier Bay National Park, Southeast Alaska, USA.
Popular Tunnel view vista of Yosemite Valley, El Capitan and Half Dome granite rock formations, Yosemite National Park, California, USA
Zion Canyon taken from Angels Landing on sunny day, Zion National Park, Utah, USA
Popular rock formation (hoodoo) named Thor's Hammer taken from Navajo Loop Trail, Bryce Canyon National Park, Utah, USA
Kanarra Creek hiking trail through slot canyon, Kolob Canyons section of Zion National Park, Utah, Western United States, USA
An adult Scotts oriole (Icterus parisorum), Big Bend National Park, Texas, United States of America, North America
Red rock formations known as hoodoos in Bryce Canyon National Park, Utah, United States of America, North America
Sequoia trees in the Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Mirror Lake in the Tenaya Canyon, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Harebell (Campanula rotundifolia), Grand Teton National Park, Wyoming, United States of America, North America
Grand Teton National Park, Wyoming, USA, North America
Bryce Canyon from Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America
Ancient Indian petroglyphs along the Onyx Trail at Petrified Forest National Park, Arizona, United States of America, North America
Sunrise across Badwater Basin, Telescope Peak from Dante's View in Death Valley National Park, California, United States of America, North America
A mountain biker in Titus Canyon in Death Valley National Park, California, United States of America, North America
The Racetrack, a playa or dried up lakebed, in Death Valley National Park, California, United States of America, North America
Grand Teton National Park trails, Wyoming, United States of America, North America