Herd of Caribou (Rangifer tarandus caribou) grazing in a field; Alaska, United States of America

Herd of Caribou (Rangifer tarandus caribou) grazing in a field; Alaska, United States of America

Snowboarder with snowboard on a snowy slope at sunset, South-central Alaska; Homer, Alaska, United States of America

Snowboard on a snowy hillside, Homer, Southcentral Alaska, USA

A muskox (Ovibos moschatus) cow shedding it's winter coat walks with her young calf, captive at the Alaska Wildlife Conservation Center, South-central Alaska; Portage, Alaska, United States of America

Dall lamb (ovis dalli) on hillside and looking at camera, Chugach mountains south of Anchorage, south-central Alaska; Alaska, United States of America

Hiker on a hillside in front of Mt. McKinley and Muldrow Glacier, Denali National Park, Interior Alaska, summer

Hiker on a hillside in front of Mt. McKinley and Muldrow Glacier, Denali National Park, Interior Alaska, summer

Hiker on a hillside in front of Mt. McKinley and Muldrow Glacier, Denali National Park, Interior Alaska, summer

A man views Mt. McKinley from a hillside near the Eielson Visitor Center in Denali National Park, Interior Alaska, Summer

Man hiking on Sheep Mountain, Talkeetna Mountains, Southcentral Alaska

Close up of a person holding Qiviut (musk ox wool), Fairbanks, Alaska

View of a house in danger of collapsing into the flooding Matanuska River, Palmer, Southcentral Alaska, autumn

Dall sheep rams in Denali National Park & Preserve. Autumn. Interior Alaska.

Musk ox lying on the frozen tundra with a loader driving by in the Prudhoe Bay Oilfield, North Slope, Arctic, Alaska

Dall sheep ewe and lamb. Denali National Park & Preserve in Interior Alaska in Summer. Polychrome Pass area of the Park.

Muskox (Ovibos moschatus) standing on a hillside; Alaska, United States of America