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Place-mining Possibilities in Montana

Place-mining Possibilities in Montana Pt. I. Methods and Appliances for Individual Operators. Pt. II. Placer-mining Districts in Montana. Pt. III. Reported Bar Placers on Missouri River Below Fort Benton

Montana Bureau of Mines and Geology, Charles Frederick Deiss, Charles Horace Clapp, Eugene Sheridan Perry, John Elmer Blixt, Oscar Aldrich Dingman — 1929

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