Portland, S. D., Cyanide Plant Trojan - 1876 Deadwood Genealogy

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Topic: Portland, S. D., Cyanide Plant Trojan

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Date: Feb 10, 2015

Portland, S. D., Cyanide Plant Trojan	Permalink

Cyanide Plants. Trojan cyanide plant was erected near Portland, S. D. Cleophas Cisney O'Harra, Black Hills Handbook Company, 1913 - Black Hills (S.D. and Wyo.) __________________

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