Over a century of mining in Canmore extracted 16 million tons of coal. To this day, there are more kilometres of mineshaft underground than roads in Canmore. This 23 minute video looks at undermining issues and concerns with the proposed development of Three Sisters Mountain Village in Canmore, Alberta. Retired mine engineer, Gerry Stephenson understands the history of what has gone on underground and the potential dangers that face developers on these lands. In this video Gerry visits many sites in the Three Sisters area and discusses how the past continues to influence the future.
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