Trees in a snow covered landscape, Rocky Mountains, USA

Panoramic view of snow covered mountains, Rocky Mountains, USA

Panoramic view of snow covered mountains, Colorado, USA

Trees covered with frost, Wyoming, USA

Panoramic view of snow covered mountains, Rocky Mountains, USA

Stream passing through a forest, Rocky Mountains, USA

Aspen Trees in a field, Grand Teton National Park, Wyoming, USA

Panoramic view of snow covered mountains, Ridgway, Colorado, USA

Landscape with snow, Wyoming, USA

Barn in a field with a mountain range in the background, Grand Teton National Park, Wyoming, USA

Trees with snowcapped mountains, Mt Shasta, Siskiyou County, California, USA

Trees in front of mountains, Athabasca River, Mount Fryatt, Jasper National Park, Alberta, Canada

Trees in a snow covered field viewed from the porch of a cabin, Swan Valley, Montana, USA

Snow covered trees in a forest, Jasper National Park, Alberta, Canada

Snow covered trees at the lakeside, Lake Tahoe, California, USA

Snow covered trees on a mountain, Canadian Rockies, Jasper National Park, Alberta, Canada

Snow covered trees on a mountain, Canadian Rockies, Jasper National Park, Alberta, Canada

River passing through a forest with mountains in the background, Canadian Rockies, Jasper National Park, Alberta, Canada

Snow covered trees on a mountain, Jasper National Park, Alberta, Canada

River flowing with a mountain in the background, Athabasca River, Mt Kerkeslin, Jasper National Park, Alberta, Canada

Snow covered trees in a forest, Jasper National Park, Alberta, Canada

Trees in front of mountains, Maligne Range, Medicine Lake, Jasper National Park, Alberta, Canada

Artist's concept of a dangerous snow covered landscape.

A landscape with a sunrise, mountains and waterfall

Tyrannosaurus Rex dinosaur in a snowy landscape.

A crashed spaceship in the mountains of an alien world.

A pair of Sabre-Tooth Tigers encountering UFO's.

A pair of Sabre-Toothed Tigers surviving a prehistoric winter.

Bare trees in a snow covered landscape, Rocky Mountains, USA