Browse TRAIL Inventories

Mining and milling methods and costs, Tri-State Zinc, Inc., Jo Daviess County, Ill.

Mining methods and costs at the Hayden Creek Mine of St. Joseph Lead Co., St. Francois County, Mo.

Mining methods and costs at the Westside Mine of the Eagle-Picher Co., Cherokee County, Kans.

Mining and milling methods and costs, Ozark Ore Co., Iron Mountain Iron-Ore Mine, St. Francois County, Mo.


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