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The Trans Alaska Oil Pipeline running on refridgerated support to stop oil heat melting the permafrost,Mount Hayes (4116m) and the Alaska Range in the background, Alaska, USA

Dawn mist in autumnal colours and hunters cabin closed for the winter, Kenai Peninsula, Alaska, USA, North America

Great Sand Dunes National Monument and Sangre de Cristo Mountains, 700 ft dunes are the tallest in North America, Colorado, USA, North America

Maroon Bells seen from stream rushing to feed Maroon Lake nearby, Aspen, Colorado, Rocky Mountains, USA, North America

Trans Alaska oil pipeline across taiga through Alaskan Range carried on insulated ground piles, Alaska, USA

Saguaro organ pipe cactus and prickly pear cactus, Saguaro National Monument, Tucson, Arizona, USA, North America

Taylor Highway, gravel road through pine forest only opens summer three months into 40 Mile goldfields area, E. Alaska, USA, North America

Niagara Falls on the Niagara River that connects Lakes Ontario and Erie, American Falls on the left, and Horseshoe Falls on the right, New York State, United States of America (U.S.A.), North America

Cliff Geyser erupts from geyserite bank on edge of Firehole River through Black Sand Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

Visitor looking over rugged landscape from the Badlands Loop Road near Panorama Point, Badlands National Park, South Dakota, United States of America, North America

Rock formation known as Swirls on Colorado Plateau, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

West Rim, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America (U.S.A.), North America

Cactus silhouetted against lightning, Tucson, Arizona, United States of America (U.S.A.), North America

View of active volcano from helicopter, Big Island, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America

Lake Quinault, Olympic National Park, UNESCO World Heritage Site, Washington State, United States of America (U.S.A.), North America

Blonde girl looks at snow covered peaks from the Paradise Lodge, Mount Rainier, Washington State, United States of America (U.S.A.), North America

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

Landscape with wild flowers, Mount Rainier National Park, Washington state, United States of America, North America

Mount Rushmore National Monument, Black Hills, South Dakota, United States of America, North America

View of Courthouse Towers, The Organ and Three Gossips at dawn, Arches National Park, Utah, United States of America, North America

The Mittens and Merrick Butte, Monument Valley Navajo Tribal Park, Utah, United States of America, North America

Morning Glory Pool and surrounds, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Autumn (fall) storm approaches, Mormon Row barn, Antelope Flats, Grand Teton National Park, Wyoming, United States of America, North America

Cold tourists on seat surrounded by steam, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Dead trees and steam with mountain backdrop and blue skies, Mammoth Hot Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Tree studded ridges, fog and clouds of a partial temperature inversion, Bryce Canyon, Bryce Canyon National Park, Utah, United States of America, North America

Dawn mist, Mount Moran, Oxbow Bend, Snake River, Grand Teton National Park, Wyoming, United States of America, North America

Pinnacles and hoodoos with fog extending into clouds of a partial temperature inversion, Bryce Canyon National Park, Utah, United States of America, North America

View into Zion Canyon from trail to Observation Point, Zion National Park, Utah, United States of America, North America

Frosty autumn (fall) dawn at Oxbow Bend, Snake River, Grand Teton National Park, Wyoming, United States of America, North America

Fallen lodgepole pines, Grand Prismatic Spring, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Fishing Cone Geyser with freezing mists, Yellowstone Lake at West Thumb Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Wildfowl on Snake River surrounded by a cold dawn mist, autumn (fall), Grand Teton National Park, Wyoming, United States of America, North America

Fog and clouds of a partial temperature inversion surround the red rocks of Bryce Canyon, Bryce Canyon National Park, Utah, United States of America, North America

A chairlift taking skiers to the back bowls of Vail ski resort, Vail, Colorado, United States of America, North America

Field of canola on the Enchanted Highway, Regent, North Dakota, United States of America, North America

Returning on horseback, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

Backlit hoodoos and Thor's Hammer, Bryce Canyon National Park, Utah, United States of America, North America

View from Sunset Point at sunset, Bryce Canyon National Park, Utah, United States of America, North America

Stream through wildflowers, Mineral Basin, Uncompahgre National Forest, Colorado, United States of America, North America

Maroon Bells with fall color, White River National Forest, Colorado, United States of America, North America

Tioga Road/Big Oak Flat Road National Scenic Byway into Yosemite National Park, California, United States of America, North America

Escarpment and lava beds in El Malpais National Monument, New Mexico, United States of America, North America

Saguaro cacti and barrel cacti in bloom, Saguaro National Park, Rincon Mountain District, Tucson, Arizona, United States of America, North America

Layered sandstone column under clouds, Coyote Buttes Wilderness, Vermillion Cliffs National Monument, Arizona, United States of America, North America

Lomaki Pueblo, inhabited from approximately 1100 AD to 1250 AD, Wupatki National Monument, Arizona, United States of America, North America

Bobcat (Lynx rufus), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Taro fields in Hanalei National Wildlife Refuge, Hanalei Valley, Kauai, Hawaii, United States of America, Pacific

Group of people hold hands at the summit of Nohoch Mul Pyramid in the Ancient Mayan City of Coba, outside Tulum, Mexico, North America