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Evening light on mountain peaks, view from Hurricane Ridge, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Hoh Rainforest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Grand Canyon view between two cliffs with a rock window on the right, located just west of Pinal Point on the south rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A sign along the Bright Angel Trail in Grand Canyon warning that the plants in this area are very fragile, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The second tunnel along Bright Angel Trail in winter at sunrise on the South Rim of Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

An evening thunderstorm approaching the Grand Canyon in Arizona, viewed from the Desert View Vista, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

HDR composite of Sinking Ship rock on the South Rim of the Grand Canyon, view from a cliff just below the canyon rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Watch Tower on South Rim of Grand Canyon illuminated by moonlight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon view just below the summit of Buggeln Hill on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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

Grand Canyon view from the east slope of Buggeln Hill on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Grand Canyon from the Desert View Trail a mile east of the historic Watch Tower with a lightning storm rolling into the area, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Adult bald eagle (Haliaeetus leucocephalus), on perch in Geographic Harbor, Katmai National Park, Alaska, United States of America, North America

An adult brown bear (Ursus arctos), in Geographic Harbor, Katmai National Park, Alaska, United States of America, North America

A mother brown bear (Ursus arctos), feeding with her cubs in Geographic Harbor, Katmai National Park, Alaska, United States of America, North America

Grand Canyon view from the Tanner Trail with only the twilight glow as the light source, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

View of Escalante Butte in the Grand Canyon from the Tanner Trail just before sundown, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Mounds and cliffs of expansive clay called Bentonite in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America

Woman in Desert Loop Trail in Carlsbad Caverns National Park, New Mexico, United States of America, North America

Coronada Butte viewed from the New Hance Trail on the south rim of the Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A northeast panorama of the Grand Canyon from Shoshone Point at sundown, with Shoshone Rock on the right, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Shoshone Rock at Shoshone Point on the south rim of the Grand Canyon facing north at twilight, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

The Lithodendron Wash in the Petrified Forest National Park, Arizona, United States of America, North America

A rocky pile in Petrified Forest National Park called Newspaper Rock, where some rocks have petroglyphs, Arizona, United States of America, North America

A red pool of salty water along the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America

Hills of Bentonite Clay called Teepees at the start of the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America

Huge formations of Bentonite Clay called the Teepees in the Petrified Forest National Park, Arizona, United States of America, North America

A large petrified log along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America

A shattered petrified log in a desolate area of Petrified Forest National Park, Arizona, United States of America, North America

A large petrified log along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America

Formation in the Petrified Forest National Park called a Teepee viewed from the main road that runs through the park, Arizona, United States of America, North America

Panorama view of the Painted Desert from Tawa Point in Petrified Forest National Park, Arizona, United States of America, North America

View from a side canyon along the Blue Mesa Trail in Petrified Forest National Park, Arizona, United States of America, North America

Mushroom shaped formations along the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America

Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America

Sand Beach, Mount Desert Island, Acadia National Park, Maine, New England, 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

Half Dome, Mount Broderick and Liberty Cap with Nevada Fall waterfall on Merced River, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Sequoiadendron giganteum tree species, Sequoia National Park in the Sierra Nevada in California, United States of America, North America

Beautiful waterfall of Vernal Fall on Merced River Mist trail, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Close up of sequoia tree in Sequoia and Kings Canyon National Park in the Sierra Nevada in California, United States of America, North America

Tunnel View overlook in Yosemite National Park, El Capitan and Half Dome overlook, UNESCO World Heritage Site, California, 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

Yosemite National Park sign for Glacier Point, Taft Point and Sentinel Dome, UNESCO World Heritage Site, California, United States of America, North America

Yosemite National Park sign for Glacier Point, Taft Point and Sentinel Dome, UNESCO World Heritage Site, California, United States of America, North America

Driving and sightseeing in the Badlands National Park, South Dakota, United States of America, North America

Driving and sightseeing in the Badlands National Park, South Dakota, 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

Giant redwoods on the Lady Bird Johnson Trail in Redwood National Park, UNESCO World Heritage Site, California, United States of America, North America

Giant redwoods on the Lady Bird Johnson Trail in Redwood National Park, California, United States of America, North America

Caution sign on the Lady Bird Johnson Trail in Redwood National Park, UNESCO World Heritage Site, California, United States of America, North America

Giant redwoods on the Lady Bird Johnson Trail in Redwood National Park, UNESCO World Heritage Site, California, United States of America, North America

Giant redwoods on the Lady Bird Johnson Trail in Redwood 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

Early light on Mount Rainier from the Burroughs Mountain Trail, Mount Rainier National Park, Washington State, 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

Adult hoary marmot (Marmota caligata), on the Skyline Trail, Mount Rainier National Park, Washington State, United States of America, North America

Views from the Skyline Trail of Mount Rainier National Park, Washington State, United States of America, North America

Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Waterfall on the Sol Duc Falls Trail, Sol Duc Valley, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Nursery log on the Rain Forest Nature Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Dense ferns on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Buildings from the Kestner Homestead, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Lichen-covered trees on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Waterfall on the Marymere Falls Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Temperate rain forest on the Maple Glade Trail, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Old Chevrolet truck at the Kestner Homestead, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Old Chevrolet truck at the Kestner Homestead, Quinault Rain Forest, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Photographer on the Sol Duc Falls Trail, Sol Duc Valley, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Fall color change amongst the trees and shrubs in Polychrome Pass in Denali National Park, Alaska, United States of America, North America

A pair of adult fin whales (Balaenoptera physalus) surfacing in Kenai Fjords National Park, Alaska, United States of America, North America

Fall color change amongst the trees and shrubs on the Rock Creek Trail in Denali National Park, Alaska, United States of America, North America

Sunrise at Ruby Beach in Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Sunrise at Ruby Beach in Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Sunrise at Ruby Beach in Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Sunrise at Ruby Beach in Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Roosevelt Elk at Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

Large flock of seagulls at Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America, North America

An adult humpback whale (Megaptera novaeangliae), flukes-up dive near boat in Kenai Fjords National Park, Alaska, 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

View along the Virgin River from Canyon Junction, autumn, golden cottonwood trees prominent, Zion National Park, Utah, United States of America, North America

View from the Pa'rus Trail across the Virgin River to the Watchman at sunset, 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

View along the Pa'rus Trail to Mount Spry and the East Temple, 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

Uinta chipmunk (Neotamias umbrinus) clinging to rocks high above Pine Creek, autumn, Zion National Park, Utah, United States of America, North America

View along the Virgin River to Angels Landing from the Emerald Pools Trail, autumn, Zion National Park, Utah, United States of America, North America

View along the Virgin River to the towering sandstone cliffs of the Temple of Sinawava, autumn, Zion National Park, Utah, United States of America, North America

View from the Pa'rus Trail across woodland to the Towers of the Virgin, autumn, Zion National Park, Utah, 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

Black-tailed jackrabbit (Lepus californicus), Joshua Tree National Park, Mojave Desert, California, United States of America, North America

Joshua tree (Yucca brevifolia), 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

Black-tailed jackrabbit (Lepus californicus), Joshua Tree National Park, Mojave Desert, California, United States of America, North America