Prospecting and mining for opal along the Snake River in southwest Idaho during the eighteen nineties: A brief history of Idaho's opal industry in Owyhee County and a sketch of the early-day mining camp of Opaline (book cover)

Prospecting and mining for opal along the Snake River in southwest Idaho during the eighteen nineties: A brief history of Idaho's opal industry in Owyhee County and a sketch of the early-day mining camp of Opaline

by Brockett, R. (1981)
State of Idaho
Mining
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