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Rock formation with clouds, The Needles District, Canyonlands National Park, Utah, United States of America, North America
Grizzly bear (Ursus arctos horribilis), Glacier National Park, Montana, United States of America, North America
Green River overlook, Island in the Sky, Canyonlands National Park, Utah, USA, North America
Main Terrace Hot Spring with snow, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Grandstand in Racetrack Valley, a dried lake bed known for its sliding rocks on the Racetrack Playa, Death Valley National Park, California, United States of America, North America
Badwater Basin, Death Valley National Park, California, United States of America, North America
Cholla Cactus Garden, Joshua Tree National Park, California, United States of America, North America
Badlands, Petrified Forest National Park, Arizona, United States of America, North America
Cresent Lake, Aurora Ridge in the background, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
Hurricane Ridge, Olympic National Park, UNESCO World Heritage Site, Washington, United States of America, North America
Pond, Sleeping Bear Dunes National Park, Glen Arbor, Michigan, United States of America, North America
Driftwood logs, Pacific coast beach, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
View of Freya's Castle and Vishnu Temple on the left and Wotan's Throne on the right at sunrise viewed from Cape Royal, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Snow covered bison (Bison biso), on the river bank, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Late sunlight glowing on the rocks of the Zion National Park, Utah, United States of America, North America
View of Hermit Canyon from the east side of Yuma Point at Grand Canyon Arizona along the Boucher Trail with Pima Point on the upper right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Granite mountains at sunset, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
View over the Vernal and Nevada Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Humpback whale (Megaptera novaeangliae) tail slapping, Resurrection Bay, Kenai Fjords National Park, Alaska, United States of America, North America
A young brown bear (Ursus arctos) along the shoreline at Lake Clark National Park and Preserve, Alaska, United States of America, North America
View of Cooks Meadow and Upper Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
String Lake, Grand Teton National Park, Wyoming, United States of America, North America
Turret Arch, Arches National Park, Utah, United States of America, North America
Landscape Arch, Arches National Park, Utah, United States of America, North America
Landscape Arch, Arches National Park, Utah, United States of America, North America
Mormon Row and Teton Range, Grand Teton National Park, Wyoming, United States of America, North America
Mormon Row and 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
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Balanced Rock, Arches National Park, Moab, Utah, United States of America, North America
Windows Arches, 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
Bryce Canyon National Park, 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
Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Scenic view of forest and mountains, Denali National Park and Preserve, Alaska, United States of America, North America
The cliffs of Bright Angel Canyon at Grand Canyon viewed from the start of Garden Creek Canyon along Bright Angel Trail, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Hikers in Marble Canyon along the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Floating down the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View from Cape Royal Point of the north rim of Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
View of the North Rim of Grand Canyon National Park from Bright Angel Point, UNESCO World Heritage Site, Arizona, United States of America, North America
Mesquite Flat Sand Dunes at sunsrise, Death Valley National Park, California, United States of America, North America
Mesquite Flat Sand Dunes at sunsrise, Death Valley National Park, California, United States of America, North America
Giant petrified logs on the Purple Peninsula in Petrified Forest National Park, Arizona, United States of America, North America
An area south of the Tepees in Petrified Forest National Park known as the Little Tepees, Arizona, United States of America, North America
A valley in Petrified Forest National Park, west of the Tepees, Arizona, United States of America, North America
Photographing at the Puebloan granaries at Upper Nankoweap, Grand Canyon National Park, Arizona, United States of America, North America
An adult desert collared lizard (Crotaphytus bicinctores), basking in 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.
Flight seeing from Haines over the Fair-weather Range in Glacier Bay National Park, Southeast Alaska, USA.
Half Dome granite rock formation, Yosemite National Park, Sierra Nevada, Central California, California, USA
Famous giant sequoia tree named Grizzly Giant, Mariposa Grove, Yosemite National Park, California, USA
Scenic view of desert of Death Valley National Park during sunset, Eastern California, California, USA
An adult female American black bear (Ursus americanus), Big Bend National Park, Texas, United States of America, North America
An adult Uinta chipmunk (Neotamias umbrinus), in Bryce Canyon National Park, Utah, United States of America, North America
Close-up of water over rocks, Great Smoky Mountains National Park, UNESCO World Heritage Site, Tennessee, United States of America, North America
Slickrock, Zion National Park, Utah, United States of America, North America
Rim cliffs and hoodoos lit by late afternoon sun in winter, Paria View, Bryce Canyon National Park, Utah, United States of America, North America
Gros Ventre River with snow, ice, and fog, Grand Teton National Park, Wyoming, United States of America, North America
Road, Death Valley National Park, California, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Double O Arch, Arches National Park, Utah, United States of America, North America
Gibbon Falls, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Snow-covered mountains in the spring from Trail Ridge Road, Rocky Mountain National Park, Colorado, United States of America, North America
The towering cliffs of the Narrows in Zion National Park, Utah, United States of America, North America
A view of the eastern portion of Death Valley National Park, California, United States of America, North America
A view of Zabriskie Point at sunset, Amargosa Range, Death Valley National Park, California, United States of America, North America
A view of Mosaic Canyon Trail in Death Valley National Park, California, United States of America, North America
The Upper Falls in the Grand Canyon of Yellowstone in the Yellowstone National Park, UNESCO World Heritage Site, Wyoming, 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
Snowscape reflected in pond, Grand Teton National Park, Wyoming, United States of America, North America
Desert landscape viewed through Partition Arch, Arches National Park, Utah, United States of America, North America
Juniper at sunset at Keys View, Joshua Tree National Park, California, United States of America, North America
Boulders at sunset, Joshua Tree National Park, California, United States of America, North America
Joshua Tree National Park, California, United States of America, North America
Half Dome from Glacier Point, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
The Wooden Shoe rock formation and stemless woollybase (Hymenoxys acaulis) at sunset, The Needles District, Canyonlands National Park, Utah, United States of America, North America
Joshua Tree National Park, California, United States of America, North America
Red sky over St. Mary Lake at sunrise, Glacier National Park, Montana, United States of America, North America
Pool of water at Badwater, Death Valley National Park, California, United States of America, North America
Shadows of two people walking up the dunes of the Mesquite Flats sand dunes, Grapevine Mountains of the Amargosa range behind, Stovepipe Wells, Death Valley National Park, California, United States of America, North America
A sedimentary Pipe, Angel's Palace trail, Kodachrome Basin State Park, Grand Staircase-Escalante National Monument, Kane County, Utah, United States of America, North America
Common chuckwalla (Sauromalus ater), Leadfield in Titus Canyon in Death Valley National Park, California, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
Reflection Lake, Mount Rainier National Park, Washington State, United States of America, North America
The sun rising at Grand Canyon North Rim, viewed from the Angels Window Overlook at Cape Royal, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The summit of Tritle Peak off Roosevelt Point on Grand Canyon North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The paved pathway between Bright Angel Point and the visitor center at Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The paved pathway between Bright Angel Point and the visitor center at Grand Canyon North Rim at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Sign marking the Nankoweap Trail for the Saddle Mountain Wilderness that borders Grand Canyon National Park, Arizona, United States of America, North America
View over the towering cliffs of the Zion National Park, Utah, 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
The Weeping Rock, a huge overlook in the Zion National Park, Utah, United States of America, North America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
Clouds reflecting in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America