Development of the Drumbo Mine: A new gypsum mine in Ontario

CIM Bulletin, Vol. 76, No. 849, 1983

R.C. HARTVIKSEN, Mine Manager, Westroc Industries Limited, Drumbo, Ontario

The Drumbo Mine is a new gypsum mine located at exit No. 32 of Highway 401 between Woodstock and Kitchener, Ontario. . The flat-lying 6-foot (1.8-metre) bed of gypsum is near the base of the Silurian Salina Formation, about 380 feet (116 metres) below surface. The mine is owned and operated by Westroc Industries Limited. A shaft, 12.5 feet (3.81 metres) in diameter, was drilled and then lined with a liner-sinking technique new to this continent. The shaft was completed in the fall of 1977. Gypsum production was started in December 1978, employing a conventional room - and - pillar method of mining.
Keywords: Underground mining, Industrial minerals, Drumbo Mine, Gypsum, Shaft sinking, Drilling, Liners, Grouting.