Sign marking the 1925 edge of the retreating Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies, Jasper National Park, Alberta,...冰川, 氣候變化, 美國
Retreating Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies, Jasper National Park, Alberta, Canada.
Detail showing crevasses and seracs on the Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies, Jasper National Park, Alberta,...加拿大洛基山脈
All-wheel-drive, three axle snow coach with tourists on the retreating Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies,...巴士, 冰川
Tourists visiting retreating Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies, Jasper National Park, Alberta, Canada.融化, 冰川, 加拿大
Tourists visiting retreating Athabasca Glacier, part of the Columbia Icefield in the Canadian Rockies, Jasper National Park, Alberta, Canada.融化, 加拿大, 冰川
