Collection search - Mine no. 187. Location: Black Diamond Mine, S. W. 1/4, Sec. 15, Tp. 29, R. 23, W. 4. Operated by: Poxon & Blacklock. Norman Fraser, Mine Surveyor & Consulting Engineer ... Edmonton. Survey extended: 12th June, 1915 ... 1915 ... 1916 ... 1917, 4th April, 1919. Traced in N. R. I. Br. [Natural Resources Intelligence Branch], Dept. of the Interior. [cartographic material]

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