Mountaineers recover cameras lost in 1937 expedition to Canadian peak

Expert team studied maps, old photos and satellite data to estimate glacier movements and track lost gear

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.