More than 100 years after amateur mountaineers set out to discover the tallest mountain in British Columbia, another group decided to tackle the historic feat — authentically. 

The Mystery Mountain Project documentary shows what goes into planning an attempt to retrace a groundbreaking expedition, without the use of modern equipment. 

The team is part of the Canadian Explorations Heritage Society, who plan every possible detail to be authentic to when the first expedition took place: their path, the same gear — with no help from modern technology. A modern camera did join them to document their latest homage to history. 

Greg Gransden, the director behind the Mystery Mountain Project, shares the behind-the-scenes of the documentary.