Two red chairs on snow covered ridge overlooking frozen lake with snow covered mountain in the background with blue sky and clouds; Banff, Alberta, Canada PacificStock
Aurora borealis over mountains within Denali National Park on a very cold winter night. The Andromeda Galaxy is visible to the left; Alaska, United States of America PacificStock
Aurora Borealis (Northern Lights) dance above Idaho Peak and the Little Susitna River at Hatcher Pass in winter, South-central Alaska; Alaska, United States of America PacificStock
Hikers make the trek to Portage Glacier on Portage Lake in winter, South-central Alaska; Alaska, United States of America PacificStock
A large ice block on frozen Turnagain Arm at sunset; Anchorage, Alaska, United States of America PacificStock
A hiker exits a small ice cave while exploring the terminal moraine of Black Rapids Glacier in the winter; Alaska, United States of America PacificStock
A man walks out the entrance of an ice tunnel at the terminus of Canwell Glacier in the Alaska Range in mid-winter; Alaska, United States of America PacificStock
Aurora borealis over the Alaska Range, near Black Rapids; Alaska, United States of America PacificStock
Fresh snow on holiday bow and decorations on fence post, Christmas season; Minnesota, United States of America PacificStock
The aurora fills the sky above the historic Black Rapids Roadhouse along the Richardson Highway on a bitterly cold night; Alaska, United States of America PacificStock
Hoarfrost covers holiday decorations on a wreath, Christmas season; Minnesota, United States of America PacificStock
The aurora glows in the sky above Donnelly Dome and a snowy, moonlit landscape, south of Delta Junction; Alaska, United States of America PacificStock
Fresh snow on holiday bow and decorations on fence post, Christmas season; Minnesota, United States of America PacificStock
Rays of sunlight through trees illuminate ice fog on a very cold day; Fairbanks, Alaska, United States of America PacificStock
A man is framed by the entrance to a large ice cave near the terminus of Augustana Glacier in the Alaska Range in winter; Alaska, United States of America PacificStock
Morning alpenglow on an unnamed peak near McGinnis Glacier in the Alaska Range; Alaska, 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
Low altitude fog is cast in warm sunset light along Turnagain Arm and the Seward Highway in winter, sea ice covering the ocean in the foreground, the Chugach Moutains revealed in the background, South-central Alaska; Alaska, United States of America PacificStock
A backcountry skier looks over the Black Rapids Glacier valley from a high point on the terminal moraine in winter; Alaska, United States of America PacificStock
The sun shines through low altitude fog cast in warm light along Turnagain Arm and the Seward Highway, sea ice covering the ocean in the foreground, the Kenai Moutains revealed in the background, South-central Alaska; Alaska, United States of America PacificStock
Artistic montage of snow contouring a creek bed with graphic designs of curving highlights and shadows; Lake Louise, Alberta, Canada PacificStock
Aurora borealis swirls over mountains within Denali National Park on a very cold winter night; Alaska, United States of America PacificStock
Bull moose (alces alces) in a frosty field in autumn at sunrise on a cold morning, South-central Alaska; Anchorage, Alaska, United States of America PacificStock
Artistic montage of snow contouring a creek bed with graphic designs of curving highlights and shadows; Lake Louise, Alberta, Canada PacificStock
Aurora borealis stretches over mountains within Denali National Park on a very cold winter night; Alaska, United States of America PacificStock
Sunrise over the pond and mountains along the Parks Highway in autumn, near Cantwell in interior Alaska; Alaska, United States of America PacificStock
Artistic montage of snow contouring a creek bed with graphic designs of curving highlights and shadows; Lake Louise, Alberta, Canada PacificStock
A hiker on a ridge in Denali National Park is dwarfed by Denali at sunrise in winter; Alaska, United States of America PacificStock
Snow covered evergreen trees on a snow covered hillside with blue sky and sun burst; Calgary, Alberta, Canada PacificStock
A row of trees in a snow covered field with a bank of cloud and blue sky in the background; Calgary, Alberta, Canada PacificStock
Dramatically glowing sky at sunrise with snow covered mountain range and fog in the valley; Kananaskis Country, Alberta, Canada PacificStock
Snow covered mountains with early morning light, silhouetted forest in the foreground, blue sky and clouds; Kananaskis Country, Alberta, Canada PacificStock
Panorama of snow covered mountains with early morning light, silhouetted forest in the foreground, blue sky and clouds; Kananaskis Country, Alberta, Canada PacificStock
Snow covered mountains with early morning light, silhouetted forest in the foreground; Kananaskis Country, Alberta, Canada PacificStock
Ice flows in the Tanana River at sunset during freeze up in early winter; Alaska, United States of America PacificStock
Night skies above Chugach Mountains and Eagle River Valley on winter solstice in South-central Alaska; Alaska, United States of America PacificStock
Moraine Lake at sunset, Mendenhall Recreation Area, Tongass National Forest, near Juneau; Alaska, United States of America PacificStock
Belt of Venus and hoarfrost at sunrise along a back road in South-central Alaska in winter; Alaska, United States of America PacificStock
Large Bighorn Ram (Ovis canadensis) approaches another large Bighorn ram lying in the snow, Shoshone National Forest; Wyoming, United States of America PacificStock