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Moving boulders at Racetrack Playa in Death Valley National Park, California, United States of America, North America

Lamplugh Glacier, a tidewater glacier in Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America

A raft of common murres (Uria aalge) at breeding site on South Marble Island, Glacier Bay National Park, Alaska, United States of America, North America

A raft of common murres (Uria aalge) at breeding site on South Marble Island, Glacier Bay National Park, Alaska, United States of America, North America

Road in Zion Canyon overlooked by Angels Landing, Zion National Park, Utah, United States of America, North America

Adult Canada geese (Branta canadensis) with goslings, Gros Ventre River, Grand Teton National Park, Wyoming, United States of America, North America

Snow-capped mountains reflected in the calm waters of String Lake, Grand Teton National Park, Wyoming, United States of America, North America

Stand up paddle boarders on String Lake, Grand Teton National Park, Wyoming, United States of America, North America

Adult female Common merganser (Mergus merganser), with chicks, Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

Adult mother red fox (Vulpes vulpes), near her den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

A pair of least chipmunks (Neotamias minimus), at Phelps Lake, Grand Teton National Park, Wyoming, United States of America, North America

Young mule deer (Odocoileus hemionus) buck in velvet, Gros Ventre, Grand Teton National Park, Wyoming, United States of America, North America

Adult Yellow-bellied marmot (Marmota flaviventris) feeding at Phelps Lake, Grand Teton National Park, Wyoming, United States of America, North America

Adult female Common merganser (Mergus merganser) with chicks, Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

Young mule deer (Odocoileus hemionus) buck in velvet, Gros Ventre, Grand Teton National Park, Wyoming, United States of America, North America

Red fox kit (Vulpes vulpes), about two months old near its den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

Red fox kit (Vulpes vulpes), about two months old near its den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

Rialto Beach at sunrise, Olympic National Park, UNESCO World Heritage Site, Clallam, Washington State, United States of America, North America

Reflection of Mount Rainier at dawn, Tipsoo Lake, Mount Rainier National Park, 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

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

First Beach at dawn, 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

Grand Canyon view from Buggeln Hill on the south rim with the Sinking Ship formation on the left and Coronado Butte in the center, 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 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

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

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 red pool of salty water along the Blue Forest 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

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

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

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

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

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, UNESCO World Heritage Site, California, 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

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

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

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

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

Large flock of seagulls at Olympic National Park, UNESCO World Heritage Site, Washington State, 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

Black-tailed jackrabbit (Lepus californicus), Joshua Tree National Park, Mojave Desert, California, 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

Long-nosed leopard lizard (Gambelia wislizenii), Joshua Tree National Park, Mojave Desert, California, United States of America, North America

Desert bighorn sheep (Ovis canadensis nelsoni), Joshua Tree National Park, Mojave Desert, California, United States of America, North America

Floating in a raft on the Colorado River, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, 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

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

Panorama of the setting sun at the First Forest in Petrified Forest National Park, 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

One of many fossil filled boulders in the Clam Beds along Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America

An old windmill marking the boundary of the Devil's Playground in Petrified Forest National Park, Arizona, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), surfacing with spout in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae) flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult North American porcupine (Erethizon dorsatum), running in Glacier Bay National Park, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive at sunset in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Steller sea lion (Eumetopias jubatus), haul out site, South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Steller sea lions (Eumetopias jubatus), haul out site, South Marble Islands, Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America

Glacial ice stranded on the beach at low tide in the East arm of Glacier Bay National Park, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America

Rio Grande River in golden grasses with Chisos Mountains in background, Big Bend National Park, Texas, United States of America, North America

Desert view with yucca plant, Big Bend National Park, Texas, United States of America, North America

Grand Canyon viewed from the east side of Maricopa Point along the Hermit Road, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Nevada Fall waterfall in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

The Merced River at Valley View in spring, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Ancient Western Juniper tree growing on the granite slopes above Olmstead Point in Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Ancient Nankoweap granary high above the Colorado River through the Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America