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U.S.G.S. Mining Reports for the State of Montana - (3) Publications Bulletin 26, 527 and Montana Bu

Currency:USD Category:Collectibles / Mining Start Price:60.00 USD Estimated At:120.00 - 200.00 USD
U.S.G.S. Mining Reports for the State of Montana - (3) Publications Bulletin 26, 527  and Montana Bu
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U.S.G.S. Mining Reports for the State of Montana - (3) Publications Bulletin 26, 527 and Mining Bureau Montana Geology Memoir No. 32 1) U.S.G.S. Bulletin 527: 1913: "Ore Deposits of the Helena Mining Region" by Adolph Knopf ( 6 x 9" Booklet , 7 Plates, 4 Figures - 143 Pages) 2) Geology & Ore Deposits of the Highland Mountains, Southwestern Montana- M.B.M.G. Memoir No. 32 ( 8 1/2 x 11 Booklet - 6 Plates includes 21 x 14 Geologic Map Showing 132 Mining Claims & 6 Figures -63 Pages) by Uuno M. Sahinen 3) Anaconda Copper Mining Co., Butte, Montana Bulletin 26, "Rock Bolting," April 1951 (8 1/2 x 11)

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Country (if not USA):
State: Montana
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Date: 1913, 1950, and 1951