Penokee Mine Ironwood Michigan - 搜索图片

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Newport Mine Ironwood, MI Postcard
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Geneva Mine Ironwood, MI Postcard
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A Mine Shaft At Ironwood
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Shaft Newport Mine Ironwood, MI Postcard

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New Port Mine Ironwood, MI Postcard
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East Norrie Mine Ironwood, MI Postcard
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OLD 1956 PENOKEE MINE MINING MAP ~ IRONWOOD,MIC…
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OLD 1956 PENOKEE MINE MINING MAP ~ IRONWOOD,MIC…

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Keweenaw Now: Updated: Penokee iron mining proposal t…
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Michigan Technological University
Iron and Coal Mines Copper Mines: Mining History: Mine Shafts of Michigan:
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Michigan Technological University
Mining History: Mine Shafts of Michigan: Iron Mines
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Michigan Technological University
Gogebic and Others: Mining History: Mine Shafts of Michigan:

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Michigan Technological University
Menominee Range: Mining History: Mine Shafts of Michigan:

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