Ruby Quarry, Ruby FlintOccurrence • Molybdenum
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SpringfieldPast Producer • Copper
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Mineral HillPast Producer • Copper
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Lehigh PitPast Producer • Clay
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Medford QuarryPast Producer • Marble, Dimension
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KeenyPast Producer • Iron
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Meyer BanksPast Producer • Iron
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NellarPast Producer • Iron
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Wareheim Et Al. BanksPast Producer • Iron
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Hunter Et Al.Past Producer • Iron
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Avondale Banks & Additional MinesPast Producer • Iron
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Hood Mine/Richmond MinePast Producer • Iron
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Mineral HillPast Producer • Copper
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PatapscoPast Producer • Copper
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UnionvillePast Producer • Zinc
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Roop MinePast Producer • Copper
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Peterman BanksPast Producer • Iron
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Springfield/Carrollnew BurraPast Producer • Copper
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PatapscoPast Producer • Copper
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Devries Quarry #1Past Producer • Feldspar
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Union Bridge Quarry & Cement PlantProducer • Stone
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Miller Ore BankPast Producer • Iron
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Schaeffer Ore BanksPast Producer • Iron
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Monroe ProspectProspect •
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Chestnut Hill Ore BanksPast Producer • Iron
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Oursler QuarryPast Producer • Feldspar
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Patapsco MinesPast Producer •
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Devries Quarry #3Past Producer • Feldspar
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Roop MineProspect •
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Oursler Talc QuarriesPast Producer • Talc-Soapstone
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John Wallen QuarryPast Producer • Feldspar
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Carroll MinePast Producer •
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Meyer Ore BankPast Producer • Iron
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Neller Ore BankPast Producer • Iron
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Medford QuarryProducer • Stone, Crushed/Broken
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Weetenkamp QuarryPast Producer • Feldspar
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Keeny Ore BankPast Producer • Iron
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Hood Ore BankPast Producer • Iron
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North Ebbvale Ore BankPast Producer • Iron
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Richmond MinePast Producer • Iron
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Robert D. Repp ProspectProspect • Copper
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Beasman ProspectProspect •
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Maus Ore BankPast Producer • Iron
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Peterman Ore BanksPast Producer • Iron
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Mineral Hill MinePast Producer •
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Hunter Ore BankPast Producer • Iron
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Wareheim DepositPast Producer • Iron
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Avondale Ore BanksPast Producer • Iron
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Springfield MinePast Producer •
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Devries Quarry #2Past Producer • Feldspar
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Copps Branch BankPast Producer • Iron
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Henryton PegmatiteProspect • Beryllium
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