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View of Navajo sandstone formations from Angel's Landing Trail in Zion National Park, Utah, 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
Towering Hoodoos in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
Grand Canyon view from the north side of Horseshoe Mesa, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Showy four o'clock flower (Mirabilis multiflora), The Needles District, Canyonlands National Park, Utah, United States of America, North America
Milky Way and person under Delicate Arch, Arches National Park, Moab, Grand County, Utah, United States of America, North America
Sunrise over the frozen Otto Lake and snowy mountains of Denali National Park in the background, Alaska, United States of America, North America
An adult American red squirrel (Tamiasciurus hudsonicus) in the trees in Denali National Park, Alaska, United States of America, North America
Cliff Geyser erupting in the Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pronghorn (Antilocapra americana) doe and two days-old fawns, Yellowstone National Park, Wyoming, United States of America, North America
Audubon's Yellow-Rumped Warbler (Dendroica coronata auduboni), Yellowstone National Park, Wyoming, United States of America, North America
Black Bear (Ursus americanus) sow and a chocolate cub of the year or spring cub, Yellowstone National Park, Wyoming, United States of America, North America
Granite mountains with Half Dome in the background, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Granite mountains with Half Dome in the background, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America
Rock formations in 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
Camper bus driving into the wonder lake campground deep in the Denali National Park, Alaska, United States of America, North America
Polychrome Mountain range in Denali National Park, Alaska, United States of America, North America
Grizzly bear (brown bear) (Ursus arctos) at Crescent Lake, Lake Clark National Park and Preserve, Alaska, United States of America, North America
Fall color change amongst the trees and shrubs in Denali National Park, Alaska, United States of America, North America
Lightning strike over Grand Canyon south rim from Cape Royal, north rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Signpost at junction of the Hickman Bridge, Rim Overlook and Navajo Knobs Trails, Fruita, Capitol Reef National Park, Utah, 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
Zabriskie Point in Death Valley National Park, California, United States of America, North America
View down Zion Canyon from Angels Landing, Zion National Park, Utah, United States of America, North America
An adult American red squirrel (Tamiasciurus hudsonicus), Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America
Panorama of Olmsted Point, off Tioga Pass Road in Yosemite National Park, UNESCO World Heritage Site, California, 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
View across the Virgin River to the red sandstone cliffs of the Temple of Sinawava, autumn, Zion National Park, Utah, United States of America, North America
Abraham and Isaac Peaks reflected in the Virgin River at sunrise, autumn, Court of the Patriarchs, Zion National Park, Utah, United States of America, North America
Man enjoying the view along The Petrified Forest Loop Trail inside Theodore Roosevelt National Park, North Dakota, United States of America, North America
Porcelain Basin, in the Norris Geyser Basin area, 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
Castle Geyser steaming, with Old Faithful erupting behind, in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Virgin River und Angel's Landing, Zion National Park, Colorado Plateau, Utah, United States of America, North America
A small group of Dall sheep (Ovis dalli) grazing on a mountainside in Denali National Park, Alaska, 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
Three hoodoos in a triangular formation in Devil's Playground called the Unholy Trinity, Petrified Forest National Park, Arizona, United States of America, North America
One of three ponds called the Hearst Tanks, on Grand Canyon South Rim, located one mile east of Grandview Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Closeup of the historic Agate House in Petrified Forest National Park, Arizona, United States of America, North America
A pair of young grizzly bears (Ursus arctos), in the shrubs near Grand Teton National Park, Wyoming, United States of America, North America
A wild American alligator (Alligator mississippiensis), in Shark Valley, Everglades National Park, Florida, United States of America, North America
A couple enjoys White Sands National Park at sunset, 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
Virgin River, Zion National Park, Utah, 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
Castle Geyser erupting, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cathedral Group of Mount Teewinot, Mount Owen and Grand Teton reflected in the Beaver Pond, Schwabacher's Landing, Grand Teton National Park, Wyoming, United States of America, North America
Tourists in backlight waiting for sunset. Haleakala National Park, Maui, Hawaii, United States of America, Pacific
Backlit hoodoos and Thor's Hammer in evening light, Bryce Canyon National Park, Utah, United States of America, North America
Aspens in fall (Populus tremuloides), Grand Tetons National Park, Wyoming, United States of America, North America
Woman watching the sunset in White Sands National Park, New Mexico, United States of America, North America
A section of Petrified Forest National Park called Angel Garden, northwest of the Onyx Bridge, Arizona, United States of America, North America
North Window and Turret Arch, Arches National Park, Utah, United States of America, North America
The Devil's Golf Course, a large salt pan filled with halite salt crystal, Death Valley National Park, California, United States of America, North America
An adult Steller's jay (Cyanocitta stelleri) in Rocky Mountain National Park, Colorado, United States of America, North America
Red fox (Vulpes vulpes) (Vulpes fulva) kit licking its father's mouth, Yellowstone National Park, Wyoming, United States of America, North America
American Bison (Bison Bison) in the snow in the Badlands, Badlands National Park, South Dakota, United States of America, North America
Hance Creek at sunset with Sinking Ship on the left and Coronado Butte right of center right, Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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
Red fox (Vulpes vulpes) (Vulpes fulva) vixen and kit in the fog, Yellowstone National Park, Wyoming, United States of America, North America
A rock spire sculpted by the wind on Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America
Round rocks in the Virgin River near The Narrows, Zion National Park, Utah, United States of America, North America
Hikers amongst hoodoo formations on the Fairyland Trail in Bryce Canyon National Park, Utah, United States of America, North America
Hikers amongst hoodoo formations on the Sunrise Point Trail in Bryce Canyon National Park, Utah, United States of America, North America
Mount Foraker in the fall, Denali National Park and Preserve, Alaska, United States of America, North America
Adult male anhinga (Anhinga anhinga), wings spread, in mangroves beside the Anhinga Trail, Everglades National Park, Florida, United States of America, North America
An Indian dwelling in Petrified Forest National Park called the Agate House, built between 1030AD and 1300AD, Arizona, United States of America, North America
The Giant Petrified Logs of Petrified Forest National Park, located along a trail behind the Rainbow Museum, Arizona, United States of America, North America
Dawn over the Gallatin Range and Swan Lake Flats, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
El Capitan, a 3000 feet granite monolith, with the Merced River flowing through Yosemite Valley, Yosemite National Park, UNESCO World Heritage Site, Sierra Nevada, California, United States of America, North America
From Bright Angel Point, North Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Milky Way above Delicate Arch, Arches National Park, Moab, Grand County, Utah, United States of America, North America
An island of rock just off the Billings Gap Trail at Petrified Forest National Park, Arizona, United States of America, North America
View over Bryce Amphitheatre from the Rim Trail at Bryce Point, Bryce Canyon National Park, Utah, United States of America, North America
View to Sinking Ship Mesa from the Rim Trail at Bryce Point, sunset, Bryce Canyon National Park, Utah, United States of America, North America
View over the Queen's Garden from the Rim Trail at Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America
Rock formations in Avenue Park, Arches National Park, Moab, Utah, United States of America, North America
Rainbow colours and low hanging mist over Icy Strait, between Chichagof Island and Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America
Colourful kayaks, Aialik Glacier, blue ice, Harding Icefield, Kenai Fjords National Park, near Seward, Alaska, United States of America, North America
Pillars of rock standing just away from the cliff of the Grand Canyon south of Zuni Point with Moran Point in the distance, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Grand Canyon view west of Shoshone point, which is on the upper right. Located on the south rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Mount Redoubt and Crescent Lake, Lake Clark National Park and Preserve, Alaska, United States of America, North America
Old Faithful, a cone geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Pecos National Historical Park, New Mexico, United States of America, North America
Mesquite flat sand dunes in Death Valley National Park, California, United States of America, North America
Moving boulders at Racetrack Playa in Death Valley National Park, California, United States of America, North America
Stranded ice on the low tide in front of Lamplugh Glacier, Glacier Bay National Park and Preserve, Alaska, United States of America, North America
Canyon overlook in Zion National Park, Utah, United States of America, North America
Snow-capped mountains reflected in the calm waters of Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America
Evening light on mountain peaks, view from Hurricane Ridge, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America
Temples and Towers of the Virgin, Zion National Park, Utah, United States of America, North America
Panorama of Grand Canyon viewed from Buggeln Point just east of Buggeln Hill on the South Rim around sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Rapids on the Colorado River, Marble Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Confluence of the Little Colorado and Colorado Rivers, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The eastern edge of the Clam Bed Mesa along the Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America
South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America
South side of Pendley Arch, Coconino National Forest just outside of Slide Rock State Park, Sedona, Arizona, United States of America, North America