High angle view of a mountain, 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

Tractor on a road, Alberta, Canada

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

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

Stream passing through a forest, Jasper National Park, Alberta, Canada

Waterfall, Maligne Canyon, Canadian Rockies, Jasper National Park, Alberta, Canada

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

Mountains at dusk, Colin Range, 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

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

High angle view of rock formations on a landscape, Zabriskie Point, Death Valley, Death Valley National Park, California, USA

High angle view of a river flowing through a forest, Snake River, Grand Teton National Park, Wyoming, USA

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

Two guanacos (Lama guanicoe) standing in the forest, Torres del Paine National Park, Patagonia, Chile

Ruins of a temple surrounded by trees, Temple Of The Grand Jaguar, Tikal National Park, Tikal, Guatemala

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