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

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

David Noton / Morraine Lake, in the Valley of the Ten Peaks, after recent snowfall, Banff National Park, Alberta, Canada. October 2009

David Noton / Morraine Lake, in the Valley of the Ten Peaks, after recent snowfall, Banff National Park, Alberta, Canada. October 2009

David Noton / The Valley of the Ten Peaks, after recent snowfall, Banff National Park, Alberta, Canada. October 2009

David Noton / The Valley of the Ten Peaks, after recent snowfall, Banff National Park, Alberta, Canada. October 2009

David Noton / Autumn colours of the Aspen trees (Populus tremula) in the snow, near Muleshoe, Bow Valley Parkway, Banff National Park, Alberta, Canada. October 2009

David Noton / Autumn colours of the Aspen trees (Populus tremula) in the snow, near Muleshoe, Bow Valley Parkway, Banff National Park, Alberta, Canada. October 2009

David Noton / Autumn colours of the Aspen trees (Populus tremula) in the snow, near Muleshoe, Bow Valley Parkway, Banff National Park, Alberta, Canada. October 2009

Eric Baccega / Hoary marmot (Marmotta caligata) carrying grass to build nest, Banff National Park, Rocky Mountains, Alberta, Canada

David Noton / Mount Rundle and the Bow Valley, Banff National Park, Alberta Canada

David Noton / Looking over Morraine Lake to the Rockies, Banff National Park, Alberta, Canada, North America

David Noton / Morraine Lake, Banff National Park, Alberta, Canada, North America

David Noton / Reflections of the Rocky Mountains in Morraine Lake, Banff NP Alberta Canada, North America

David Noton / Morraine Lake with mountains all around, Banff National Park, Alberta Canada, North America

David Noton / View over Vermillion Lake towards Mount Rundle, Banff NP, Alberta, Canada, North America

David Noton / Panoramic dawn reflections of Mt Rundle at Vermillion Lake Banff NP Alberta Canada, North America

David Noton / Morraine Lake, Banff NP, Alberta, Canada.

David Noton / Lake Louise, Banff NP, Alberta, Canada

David Noton / Consolation Lake at Banff NP, Alberta, Canada.

Tim Edwards / Banff NP, Banff National Lake. Canada. Montains reflections. Mountains and lake scene.

Jeff Foott / Mount Chephren, Banff National Park, Alberta, Canada

Chase Dekker / Moose (Alces alces) bull in tundra, Mount Rundle, Banff National Park, Alberta, Canada

Tim Fitzharris / Peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

Tim Fitzharris / Peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

Tim Fitzharris / Taiga and peaks, Sundance Range, Vermilion Lakes, Banff National Park, Alberta, Canada

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

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

Tim Fitzharris / Mount Chephren and Waterfowl Lake, Banff National Park, Alberta, Canada

Tim Fitzharris / Castle Mountain and boreal forest reflected in lake, Banff National Park, Alberta, Canada

Tim Fitzharris / Bighorn Sheep (Ovis canadensis) male, Banff National Park, Alberta, Canada

Tim Fitzharris / Bighorn Sheep (Ovis canadensis) male, Banff National Park, Alberta, Canada

Jim Brandenburg / Wildflowers, Rocky Mountains, Banff and Jasper National Park Area, Alberta, Canada

Shane Gross / Animal crossing bridge over highway road in Banff, Alberta, Canada.

Jeff Foott / Snow covered Mount Chephren, coniferous forest below. Banff National Park, Alberta, Canada. October 2018.

Jeff Foott / Mount Chephren and coniferous forest reflected in Lower Waterfowl Lake. Banff National Park, Alberta, Canada. October 2018.

Guy Edwardes / Snow capped Mount Rundle and surrounding forests reflected in Vermillion Lakes. Banff National Park, Alberta, Canada. June 2018.

Guy Edwardes / Mount Rundle reflected in Vermillion Lakes at sunrise. Banff National Park, Alberta, Canada. June 2018.

Guy Edwardes / Peyto Lake surrounded by mountains and coniferous forest. Banff National Park, Canadian Rockies, Alberta, Canada. June 2018.

Guy Edwardes / Pacific coralroot (Corallorhiza mertensiana). Banff National Park, Alberta, Canada. June.

Guy Edwardes / Saskatchewan river Crossing, Banff National Park, Alberta, Canada, June 2018.

Guy Edwardes / Lake Louise , Banff National Park, Alberta, Canada

Felis Images / Man looking out over Lake Peyto, Banff National Park, Alberta, Canada.

Felis Images / View looking out over Lake Peyto at sunset, Banff National Park, Alberta, Canada. July 2017.

Ashley Cooper / People in canoes on Moraine Lake in the Canadian Rockies, Banff National Park, Canadian Rockies, Alberta, August 2012.

Ashley Cooper / Rotting tree stump in forest in Johnsons Canyon in the Banff National Park, Canadian Rockies, Canada, August 2012.