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• Black Donald Graphite Mine, The
  The most important producer of graphite in Canada during the first half of the twentieth century, the Black Donald Graphite Mine was located near here. The extensive deposit of high-quality ore it exploited was discovered in 1889, but mining was not begun by the Ontario Graphite Company until 1895. Operated by the Black Donald Graphite Company by 1908, the mine increased output during World War I and in 1927 was producing approximately 90% of Canada's...