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Portsmouth Coal Mines (historical) Portsmouth Coal Mines (historical) Newport Unknown
Smith Granite Quarry (historical) Smith Granite Quarry (historical) Washington 121 Watch Hill
Sullivan Quarries (historical) Sullivan Quarries (historical) Washington 138 Carolina
Jackson Quarry Jackson Quarry Kent 397 Coventry Center
Conklin Limestone Quarry Conklin Limestone Quarry Providence 171 Pawtucket