High angle view of mountains, Jasper National Park, Alberta, Canada

Fog over mountains, Victoria Cross Range, Jasper National Park, Alberta, Canada

River passing through a landscape, Jasper National Park, Alberta, Canada

Wind turbine on a hill, Alberta, Canada

Low angle view of birch trees in a forest, Jasper National Park, Alberta, Canada

High angle view of a frozen waterfall, Athabasca Falls, Jasper National Park, Alberta, Canada

Waterfall with a mountain in the background, Athabasca Falls, Mt Kerkeslin, Jasper National Park, Alberta, Canada

Trees on mountains in winter, Kootenay National Park, Canadian Rockies, British Columbia, Canada

Sunlight falling over mountain peak, Jasper National Park, Alberta, Canada

Sunlight falling over mountain peak, Jasper National Park, Alberta, Canada

Reflection of a mountain in water, Jasper National Park, Alberta, Canada

Lake with mountains in the background, Jasper National Park, Alberta, Canada

High angle view of a person climbing a mountain, Mt Edith Cavell, Jasper National Park, Alberta, Canada

Bighorn sheep (Ovis Canadensis) sitting on a rock, Canadian Rockies, Jasper National Park, Alberta, Canada

High angle view of two men climbing a mountain, Mt Edith Cavell, Banff National Park, Alberta, Canada

High angle view of sand dunes in a desert, Death Valley, Death Valley National Park, California, USA

Dramatic view of a canyon, Grand Canyon, Grand Canyon National Park, Arizona, USA

Dramatic view of a canyon, Grand Canyon, Grand Canyon National Park, Arizona, USA

Saguaro cactus (Carnegiea gigantea) with cars on a curved road in the background, Kinney Road, Saguaro National Park, Tucson, Arizona, USA

High angle view of a mountain, Jasper National Park, Alberta, Canada