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Alpine bearberry (Arctostaphylos alpina) in fall color on the tundra, Denali National Park, Alaska, United States of America, North America

Close up of the feet and talons of a bald eagle (Haliaetus leucocephalus), Alaska, USA, North America

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

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

Old copper mine buildings, preserved national historic site, Kennecott, Wrangel Mountains, Alaska, 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

The Trans Alaska Oil Pipeline running on refrigerated support to stop oil heat melting the permafrost, Alaska, United States of America, North America

Brown bear at Brooks River, Brooks Camp, Katmai National Park, Alaska, United States of America, North America

Brown bear strolls the beach on Naknek Lake in the evening, Brooks Camp, Katmai National Park, Alaska, United States of America, North America

Hikers break with Mount Foraker on the left and Mount Crosson on the right, in distance, Denali National Park, Alaska, United States of America, North America

Collared pika (Ochotona collaris) taking food to a cache, Hatcher Pass, Alaska, United States of America, North America

Mount McKinley (Mount Denali) at sunset in the fall, Denali National Park and Preserve, Alaska, United States of America

Grizzly bear (Ursus arctos horribilis) with two yearling cubs, Denali National Park, Alaska, United States of America

Mount McKinley (Mount Denali), Denali National Park and Preserve, Alaska, United States of America, North America

Fisherman holding a Silver (Coho) salmon (Oncorhynchus kisutch), Coghill Lake, Alaska, United States of America, North America

Boy catching a Silver (Coho) salmon (Oncorhynchus kisutch) with dad's help, Coghill Lake, Alaska, United States of America, North America

Fisherman holding a Silver (Coho) salmon (Oncorhynchus kisutch), Coghill Lake, Alaska, United States of America, North America

Boy catching a Silver (Coho) salmon (Oncorhynchus kisutch) with dad's help, Coghill Lake, Alaska, United States of America, North America

Young brown bear (Ursus arctos) fishing for pink salmon at low tide in Pavlof Harbour, Chichagof Island, Southeast Alaska, United States of America, North America

Adult Northern (Steller) sea lion (Eumetopias jubatus) bull looking for fish scraps from fishermen in Petersburg, Southeastern Alaska, United States of America, North America

South Sawyer Glacier calving, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Glacial ice calved from the Sawyer Glacier, Williams Cove, Tracy Arm-Ford's Terror Wilderness Area, Southeast Alaska, United States of America, North America

Glacial ice calved from the Sawyer Glacier, Williams Cove, Tracy Arm-Ford's Terror Wilderness Area, Southeast Alaska, United States of America, North America

Fog in trees in Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Snow-melt waterfall in Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Glacial ice calved from the Sawyer Glacier, Williams Cove, Tracy Arm-Ford's Terror Wilderness Area, Southeast Alaska, United States of America, North America

Harbour seal (Phoca vitulina), South Sawyer Glacier, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

South Sawyer Glacier calving, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Johns Hopkins Inlet, Fairweather Range, Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America

Calved glacier ice in Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Harbour seal (Phoca vitulina), South Sawyer Glacier, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Harbour seal (Phoca vitulina), South Sawyer Glacier, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Sun shining through Devil's Club on Chichagof Island, Southeast Alaska, United States of America, North America

Harbour seal (Phoca vitulina), South Sawyer Glacier, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Snow-melt waterfall in Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

South Sawyer Glacier, Tracy Arm-Ford's Terror Wilderness area, Southeast Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Camp 1, climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

Cruise ship near Hubbard Glacier, Yakutat Bay, Gulf of Alaska, Southeast Alaska, United States of America, North America

Totem Pole at Icy Strait Point Cultural Center, Hoonah City, Chichagof Island, Southeast Alaska, United States of America, North America

Sockeye salmon attempting to jump the falls, Brooks Camp, Katmai National Park, Alaska, United States of America, North America

Arctic ground squirrel (Parka squirrel) (Citellus parryi), Hatcher Pass Alaska, United States of America, North America

Woodland caribou (Rangifer caribou) buck in velvet and shedding, Alaska Highway, British Columbia, Canada, North America

Mount McKinley with tundra in fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Mount McKinley reflected in a pond, Denali National Park and Preserve, Alaska, United States of America, North America

Porcupine caribou (Grant's caribou) (Rangifer tarandus granti) cow among fall colors, Denali National Park and Preserve, Alaska, United States of America, North America

Russian Orthodox Church, Unalaska Island, Aleutian Islands, Alaska, United States of America, North America

Carl E. Moses Boat Harbor, Dutch Harbor, Amaknak Island, Aleutian Islands, Alaska, United States of America, North America

Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) on a road with fall color, Denali National Park and Preserve, Alaska, United States of America, North America

Aura Borealis (Northern lights) in Denali Wilderness National Park, Alaska, United States of America, North America

Aura Borealis (Northern lights) in Denali Wilderness National Park, Alaska, United States of America, North America

Bald eagle (Haliaeetus leucocephalus), Chugach National Forest, Alaska, United States of America, North America

Bald eagle (Haliaeetus leucocephalus), Prince William Sound, Alaska, United States of America, North America

Pink salmon (Oncorhynchus gorbuscha), spawning season, Prince William Sound, Alaska, United States of America, North America

Bald eagle (Haliaeetus leucocephalus), Chugach National Forest, Alaska, United States of America, North America

Lion's mane jellyfish (Cyanea capillata), Prince William Sound, Alaska, United States of America, North America

Moon jellyfish bloom (Aurelia aurita), Prince William Sound, Alaska, United States of America, North America

Pink salmon (Oncorhynchus gorbuscha), spawning season, Port Valdez, Alaska, United States of America, North America

Bald eagle (Haliaeetus leucocephalus), Chugach National Forest, Alaska, United States of America, North America

Lion's mane jellyfish ((Cyanea capillata), Prince William Sound, Alaska, United States of America, North America