Parker Mountain MineProducer • Niobium (Columbium), Tantalum, Feldspar, Mica
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Manchester Sand, Gravel & Cement CoPast Producer • Sand and Gravel, Construction
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Rochester Sand and Gravel IncPast Producer • Sand and Gravel, Construction
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Kane Gonic Brick CorpPast Producer • Clay
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James S PikePast Producer • Sand and Gravel, Construction
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Dover Sand and Gravel IncPast Producer • Sand and Gravel, Construction
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Rockford Construction DivisionPast Producer • Sand and Gravel, Construction
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William J Vickers and Son IncPast Producer • Sand and Gravel, Construction
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Road QuartzProspect • Silica
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Rochester Pit & MillPast Producer • Sand and Gravel, Construction
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John Felker Mica ProspectProspect • Mica
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Somersworth Foundry Sand ProspectProspect • Silica
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Vickers and Sons PitProducer • Sand and Gravel, Construction
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Ashton Rollins PropertyProspect • Feldspar
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Madbury Pit & MillProducer • Sand and Gravel, Construction
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Huckleberry Hill Foundry SandProspect • Silica
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Warren Brothers CompanyProducer • Sand and Gravel, Construction
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Farmington Pit & Mill TilconProducer • Sand and Gravel, Construction
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Dover S&G Inc Pit & MillProducer • Sand and Gravel, Construction
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Strafford QuartzProspect • Silica
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Kane Gonic Brick Corp. Clay MineProducer • Clay
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Hanson and Downs PropertyProspect • Kyanite
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Lee PitPast Producer • Sand and Gravel, Construction
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Dover Point Foundry Sand ProspectProspect • Silica
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Farmington Pit Coastal Matls CorpProducer • Sand and Gravel, Construction
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Rober* BrickyardPast Producer • Clay
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Parker Mountain MinePast Producer •
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Rochester QuarryUnknown • Stone, Crushed/Broken
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P&S PitUnknown • Sand and Gravel, Construction
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RochesterUnknown • Sand and Gravel, Construction
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Farmington PitUnknown • Sand and Gravel, Construction
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Madbury Pit C629Unknown • Sand and Gravel, Construction
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Farmington PitUnknown • Sand and Gravel, Construction
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Dover PitUnknown • Sand and Gravel, Construction
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