In 1928, bush pilot Punch Dickins flew a 3,900-mile survey of Canada's unmapped Barren Lands, earning the McKee Trophy and opening the Northwest Territories to regular air service.
How Wilfrid 'Wop' May survived being chased by the Red Baron in 1918 and went on to complete a life-saving mercy flight through the Canadian wilderness in 1929.
Bob Reeve pioneered glacier runway operations in 1930s Alaska, turning tidal mud flats and remote ice fields into reliable supply routes for Wrangell Mountain mines.
Chamberlain Basin airstrip sits inside America's largest wilderness area, reachable only by air or foot - here's what pilots need to know about flying there.