When the American mountaineers Bradford Washburn and Robert Bates summited Canada’s third-tallest peak in 1937, bad luck forced them to jettison hundreds of pounds of gear – including tents, fuel, ice axes and valuable cameras – on a glacier before they began their ascent.
They then had to rework their planned route back due to poor weather, transforming a celebratory descent into a harrowing trek through Yukon territory.