Skanee AreaOccurrence • Lead, Vanadium, Zinc
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Taylor MinePast Producer • Iron
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Webster MinePast Producer • Iron
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Titan MinePast Producer • Iron
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Portland MinePast Producer • Iron
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Ohio MinePast Producer • Iron
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Norwood MinePast Producer • Iron
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Detroit Graphite Co. Graphite QuarryProducer • Graphite
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Northern Graphite Works QuarryProducer • Graphite
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Beaufort MinePast Producer • Iron
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Steward Mine (Orleans)Past Producer • Iron
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Spurr MinePast Producer • Iron
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Imperial Mine (Wetmore)Past Producer • Iron
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Gomanche Creek Slate QuarryPast Producer • Granite
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Northern Graphite Works QuarryPast Producer • Graphite
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Imperial MinePast Producer •
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Baraga County PitsPast Producer • Sand and Gravel, Construction
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Ohio Mine -Includes Norwood MinePast Producer •
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Unnamed Silver ProspectProspect • Silver
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Portland Open PitPast Producer •
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Unnamed Vanadium ProspectOccurrence • Vanadium
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Imperial Iron MinePast Producer • Iron
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Unnamed Lead Zinc Uranium ProspectOccurrence • Lead, Zinc, Uranium
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Spurr MinePast Producer •
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Mead PitPast Producer • Sand and Gravel, Construction
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Webster MinePast Producer •
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Unnamed Gold ProspectProspect • Gold
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Unnamed Lead ProspectOccurrence • Lead
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Titan MinePast Producer •
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Taylor MinePast Producer •
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Detroit Graphite Co.Graphite QuarryPast Producer • Graphite
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N.East Branch Slate QuarryPast Producer • Granite
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Norback PitPast Producer • Sand and Gravel, Construction
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Rowland Lake PitProducer • Sand and Gravel, Construction
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Mead PitPast Producer • Sand and Gravel, Construction
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Foy No 1 PitProducer • Sand and Gravel, Construction
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Beaufort MinePast Producer •
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Unnamed Silver ProspectProspect • Silver
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Sidnaw Slate QuarryPast Producer • Granite
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Norback PitPast Producer • Sand and Gravel, Construction
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StewardProspect •
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Arvon Slate QuarryPast Producer • Stone, Crushed/Broken
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Section 23 Silver ProspectProspect • Silver
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Huron Bay Slate CoPast Producer • Slate, Dimension
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Silver River Silver ProspectProspect • Silver
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Marquette ExplorationProspect • Gold
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Bughole ExplorationProspect • Vanadium
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Hancock ExplorationProspect • Gold
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Grummett (Ned Lake) ExplorationProspect • Gold
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