Mature Black bear (Ursus americanus) walking over grass with peaked mountains in the background, captive at the Alaska Wildlife Conservation Centre; Portage, Alaska, United States of America PacificStock
Brown bear (ursus arctos) in the frosty grass, captive at the Alaska Wildlife Conservation Center; Portage, Alaska, United States of America PacificStock
Man riding a snowmachine up the Anaktuvuk River Valley at sunset, Gates of the Arctic National Park, Brooks Range, Arctic Alaska PacificStock
Lone American Bison (bison bison) standing in snowy meadow with rugged cliffs in background, Shoshone National Forest; Wyoming, United States of America PacificStock
The Pool frozen over at sunrise in Central Park; New York City, New York, United States of America PacificStock
Snow-covered Glen Span Arch, Central Park; New York City, New York, United States of America PacificStock
Fresh snow on holiday bow and decorations on fence post, Christmas season; Minnesota, United States of America PacificStock
A moose (alces alces) forages on a winter morning with the Alaska Range in the background partially enshrouded in clouds; Alaska, United States of America PacificStock
Aurora borealis over frozen Susitna River with Mt. Foraker and Mt. Hunter in the background. PacificStock
Polar bear (ursus maritimus) walking through the snow and blizzard near Churchill; Manitoba, Canada PacificStock
Snow-covered waterfall in The Loch, Central Park; New York City, New York, United States of America PacificStock
The Aurora Borealis dances over the top of a vibrant spiral light painting, the blurry figure of a man in the middle of the light painting, moonlight casting shadows on snow covered spruce trees on a clear winter night, interior Alaska; Gakona, Alaska, Un PacificStock
Man climbing a snow ridge for back country skiing, Turnagain Pass, Kenai Mountains, Southcentral Alaska, Winter PacificStock
The Aurora Borealis dances over the top of a vibrant spiral light painting, the blurry figure of a man in the middle of the light painting, moonlight casting shadows on snow covered spruce trees on a clear winter night, interior Alaska; Gakona, Alaska, Un PacificStock
Snow on the rugged Canadian Rocky Mountains and a snow covered field, Yoho National Park; Field, British Columbia, Canada PacificStock
An open pond in the winter with snow covered hilly banks, evergreen trees and bulrushes; Calgary, Alberta, Canada PacificStock
The Aurora Borealis dances over the top of a tent alight with string lights in the middle of an snowy evergreen forest, moonlight casting shadows on a clear winter night, interior Alaska; Gakona, Alaska, United States of America PacificStock
Backcountry skier skinning in the Iguana Backs of the Chugach Range above Valdez, Southcentral Alaska PacificStock
Black and white aerial view of the mountains and icefields in Kluane National Park; Yukon, Canada PacificStock
Plane beneath the aurora borealis at the Delta Junction airstrip; Alaska, United States of America PacificStock