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Yellow maple against a red rock canyon wall in the fall, Zion National Park, Utah, United States of America, North America
Beaver (Castor canadensis) swimming, Denali National Park and Preserve, Alaska, United States of America, North America
Red squirrel (spruce squirrel) (Tamiasciurus hudsonicus) in a spruce tree, Denali National Park and Preserve, Alaska, United States of America, North America
Ribbon Lake, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Ubehebe Crater, a volcanic crater half a mile across and 600 feet deep, 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
Aerial view of sunrise over Mount Rainier National Park, Washington State, United States of America, North America
An adult Arctic ground squirrel (Urocitellus parryii) standing in the brush at Denali National Park, Alaska, United States of America, North America
California sea lions (Zalophus californianus), hauled out at Los Frailes, Cabo Pulmo National Park, Sea of Cortez, Mexico, North America
Pacific coast beach, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
South Rim in the distance viewed from Cape Final on the North Rim with Freya's Castle just right of center, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Dead trees in a snowscape with fog, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Morning Glory pool hot spring in the snow with reflections, 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
A hiker looking out from a cliff in Hermit Canyon at Grand Canyon, 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
Man overlooking the landscape in Canyonlands National Park, Moab, Utah, United States of America, North America
Sandstone towers along Park Avenue canyon, Arches National Park, Moab, Utah, United States of America, North America
Grizzly bear (brown bear) (Ursus arctos), Moraine Creek (River), Katmai National Park and Reserve, Alaska, USA.
Half Dome mountain catches the last glow of sunset reflected in the Merced River in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Grand Prismatic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
California ground squirrel (Otospermophilus beecheyi), on granite rock, Yosemite Village, Yosemite National Park, California, United States of America, North America
The Castle, an iconic sandstone peak forming part of the Waterpocket Fold, autumn, Fruita, Capitol Reef National Park, Utah, 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
Hall of Mosses rainforest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Tunnel View, 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
Yosemite Valley Chapel, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Rainbow over South Marble Island in Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America
Canyon overlook, Zion National Park, Utah, United States of America, North America
Angels Landing, Zion National Park, Utah, United States of America, North America
A winter dawn view of Grand Canyon from Bright Angel Trail on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
An adult pigeon guillemot (Cepphus columba) taking flight with a fish in Geographic Bay, Katmai National Park, Alaska, United States of America, North America
Panorama view of the Painted Desert from Tiponi Point in Petrified Forest National Park, Arizona, United States of America, North America
Panorama view of the Painted Desert from Chinde Point in Petrified Forest National Park, Arizona, United States of America, North America
A mother brown bear (Ursus arctos) with her cubs on the beach in Lake Clark National Park and Preserve, Alaska, United States of America, North America
Scenery along the Canyon Overlook Trail, Zion National Park, Utah, 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
Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, United States of America, North America
Columbian black-tailed deer (Odocoileus hemionus columbianus), Olympic National Park, UNESCO World Heritage Site, 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
Joshua tree (Yucca brevifolia), at night 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
Hills of Demons and Fallen Angels, The Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America
Curious Steller sea lions (Eumetopias jubatus), South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America
Panorama view of Grand Canyon from the bow of the Sinking Ship rock formation, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Large pieces of petrified wood on the west side of Red Basin in Petrified Forest National Park Arizona, United States of America, North America
Tunnel View, Yosemite Valley with El Capitan, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Museum vessel Balclutha, San Francisco Maritime National Historical Park, California, United States of America, North America
Grand Canyon view north of Point Imperial with Woolsey Butte on the left and Mount Hayden on the right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Steamboat Geyser, the worlds tallest active geyser, steaming in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Colter Lake in Grand Teton National Park, Wyoming, 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 view of the Bryce amphitheater from the rim at Bryce Canyon National Park, Utah, 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
Commercial dory runs the Deubendorff Rapid, just past river mile 132, Grand Canyon National Park, Arizona, United States of America, North America
An adult Mexican jay (Aphelocoma wollweberi), Big Bend National Park, Texas, United States of America, North America
An adult Eastern black-tailed rattlesnake (Crotalus ornatus), Big Bend National Park, Texas, 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
Moonlight view of Grand Canyon from The Abyss Overlook, Grand Canyon National Park, UNESCO World Heritage Site, 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
Delicate Arch (45 ft high, 33 ft wide), Arches National Park, Utah, USA
Landscape Arch, (height 92 ft, span 306 ft), Arches National Park, Utah, USA
Bridalveil Falls and Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, California, USA, North America
Pinnacles and rock formations caused by erosion viewed from Inspiration Point, in the Bryce Canyon National Park, Utah, United States of America, North America
Natural Bridges National Park, Utah, USA, North America
Cathedral Rocks reflected in water, Yosemite National Park, UNESCO World Heritage Site, California, United States of America (USA), North America
Woman and child at Grand Teton National Park, Jackson, Wyoming, United States of America, North America
Canyonlands National Park in winter, Utah, United States of America (U.S.A.), North America
Adult bison (Bison bison) crossing the highway in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
An adult male dusky grouse (Dendragapus obscurus), displaying in Yellowstone National Park, Wyoming, United States of America, North America
A woman walking along the S curve of a dune's ridge in White Sands National Park, New Mexico, United States of America, North America
View of the formation called Duck On A Rock in the afternoon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Bighorn sheep (Ovis canadensis) ram in the snow, Yellowstone National Park, Wyoming, United States of America, North America
Panorama of storms crossing Grand Canyon viewed from Shoshone Point on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Spruce Tree House Ruins, Pueblo ruins in Mesa Verde containing some of the most elaborte Pueblo dwellings found today, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Virgin River Narrows, Zion National Park, Utah, United States of America, North America
Morning light over snow covered trees, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Boat house by a pond in autumn, near Bar Harbor, Mount Desert Island, near Arcadia National Park, Maine, New England, United States of America, North America
Liberty Cap, Mammoth Hot Springs, Yellowstone National Par, UNESCO World Heritage Site, Wyoming, United States of America, North America
Tree clinging to rock at sunrise, Bryce Canyon National Park, Utah, United States of America, North America
Morning Glory pool hot spring in the snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Trees and shadows in the snow, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Two river otters (Lontra canadensis), running on snow and ice, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Peoples at Delicate Arch at golden hour, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Coronado Falls with the sun setting behind the Sinking Ship at Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Close up of bull moose (Alces alces), Grand Teton National Park, Wyoming, United States of America, North America
Winter scene in the Badlands, Badlands National Park, South Dakota, United States of America, North America
Cinnamon black bear (Ursus americanus) yearling cub, Yellowstone National Park, Wyoming, United States of America, North America
Black bear (Ursus americanus) cub of the year in a tree, Yellowstone National Park, Wyoming, United States of America, North America
A small bentonite arch in Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America
Dawn at Swiftcurrent Creek, Glacier National Park, Montana, United States of America, North America
Mirror Lake, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Hoary marmot (Marmota caligata), Glacier National Park, Montana, United States of America, North America
The Castle and Fremont River, Capitol Reef National Park, Utah, United States of America, North America
Rock Squirrel (Spermophilus variegatus), Zion National Park, Utah, United States of America, North America
View of hoodoo formations from the Navajo Loop Trail in Bryce Canyon National Park, Utah, United States of America, North America
View of hoodoo formations from the Fairyland Trail in Bryce Canyon National Park, Utah, United States of America, North America
Looking down into Ubehebe crater, a Maar volcano, caused by groundwater contacting hot magma or lava, Death Valley National Park, California, United States of America, North America