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Tourist boat on sea in Aialik Bay, Kenai Fjords National Park, Kenai Peninsula Borough, Southcentral Alaska, Alaska, United States of America, North America

Adult male plateau fence lizard (Sceloporus tristichus), north rim of Grand Canyon National Park, Arizona, United States of America, North America

Whitmore Canyon from the helicopter, just before river mile 187, 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

Colorado chipmunk (Eutamias quadrivittatus), Rocky Mountain National Park, Colorado, United States of America, North America

Snowy cliffs from Peekaboo Loop Trail, Bryce Canyon National Park, Utah, United States of America, North America

Looking north from Dante's View in Death Valley National Park, California, United States of America, North America

Black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America

South Window Arch seen through Turret Arch, Arches National Park, Utah, United States of America, North America

Sunset and South Manatou Island, Sleeping Bear Dunes National Park, Glen Arbor, Michigan, 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

Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, 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

Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

A view of the upper Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Elevated view of Lower Falls and viewing platform with visitors, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Sand dunes at dusk, Great Sand Dunes National Park, Colorado, United States of America, North America

Grizzly bear (Ursus horribilis), Glacier National Park, Montana, 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

Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America

Joshua tree at sunset, Joshua Tree National Park, California, United States of America, North America

Angels Window Overlook on North Rim of Grand Canyon at sunrise, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Beautiful red sandstone formations in the Arches National Park, Utah, United States of America, North America

Half Dome viewed from Glacier Point, Yosemite National Park, UNESCO World Heritage Site, California, 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

Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Yosemite Falls, Yosemite National Park, UNESCO World Heritage Site, California, 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

Bison calf (Bison bison), Yellowstone National Park, Wyoming, United States of America, North America

A wild burro near the Mosaic Canyon Trail in Death Valley National Park, California, United States of America, North America

Rocks lit by late afternoon sun with snow, from Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America

Hoodoos and cliffs with snow lit by late afternoon sun, from Rim Trail near Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America

Snowy mounds on the shore of Sprague Lake, Rocky Mountain National Park, Colorado, United States of America, North America

Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Bison (Bison bison) in snow, Yellowstone National Park, Wyoming, United States of America, North America

Joshua tree at sunset, Joshua Tree National Park, California, United States of America, North America

Stone wall of the Window section, Arches National Park, Utah, United States of America, North America

Jenny Lake from Inspiration Point on a clear autumn (fall) day, Grand Teton National Park, Wyoming, United States of America, North America

Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

A view of Natural Bridge Canyon in Death Valley National Park, California, United States of America, North America

The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

View into Zion Canyon from trail to Observation Point, Zion Canyon, Zion National Park, Utah, 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

An adult desert collared lizard (Crotaphytus bicinctores), basking in Grand Canyon National Park, Arizona, United States of America, North America

Autumn (fall) leaves on the shore of Phelps Lake, Grand Teton National Park, Wyoming, United States of America, North America

Rock formations, Needles District, Canyonlands National Park, Utah, United States of America, North America

Sunset in the winter with snow from Sunset Point, Bryce Canyon National Park, Utah, United States of America, North America

Tenaya Lake, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Trees at Phelps Lake in autumn (fall), Grand Teton National Park, Wyoming, United States of America, North America

Speleothems, Davies Springs, Carlsbad Caverns National Park, UNESCO World Heritage Site, New Mexico, United States of America, North America

Alligator, Anhinga Trail, Everglades National Park, Florida, United States of America, North America

Carlsbad Caverns, Carlsbad Caverns National Park, UNESCO World Heritage Site, New Mexico, United States of America, North America

Rocks along the coastline in the Acadia National Park, Maine, New England, United States of America, North America

Trees beside a river frame the snow capped Half Dome mountain in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Tundra landscape with snowline in the background on the Alaska Range of mountains, in the Denali National Park, Alaska, United States of America, North America

Pinnacles and rock formations known as The Silent City, seen from Inspiration Point, with snow on the ground, in the Bryce Canyon National Park, Utah, United States of America, North America