Eric Baccega / Spirit Island, Maligne Lake, Jasper National Park, Rocky Mountains, Alberta, Canada, September 2009

Tim Fitzharris / Mount Rundle, Johnson Lake, Banff National Park, Alberta, Canada

Gavin Hellier / Wenkchemna Peaks or Ten Peaks rising over Moraine lake in the snow, near Lake Louise, Banff National Park, Alberta, Canada, 2007

Gavin Hellier / Wenkchemna Peaks or Ten Peaks rising over Moraine lake in the snow, near Lake Louise, Banff National Park, Alberta, Canada, 2007

Gavin Hellier / Peyto Lake, coloured by glacial silt, Banff-Jasper National Parks, Alberta, Canada, 2007

Tim Fitzharris / Mount Rundle and Johnson Lake, Banff National Park, Alberta, Canada

Oriol Alamany / Angel Glacier with morraine, Jasper National Park, Rocky Mountains, Alberta, Canada

Oriol Alamany / Nigel Creek with conifer forest at dusk, Banff National Park, Rocky Mountains, Alberta, Canada

Peter Cairns / 2020VISION / View from rocky outcrop into Pumlumon Fawr. Cambrian Mountains, Wales, May 2012.

George Sanker / Bison (Bison bison) two males head to head, Yellowstone NP, Wyoming, USA

George Sanker / Black Bear (Ursus americanus) cub balancing on branch in tree, Yellowstone NP, Wyoming, USA

George Sanker / Coyote (Canis latrans) standing on rocks at water's edge, sniffing, Yellowstone NP, Wyoming, USA, October