Crossword clues for Coal mine. 3 letters:INACanary-coal mine connectorsPITCoal mine shaft.INACanary ___ coal mineINACanary-coal mine connectionPITCoal mine.WVABig coal-mining state: Abbr.PITShaft of a coal mine.TRAMCart in a coal mineSLAGSTurns into waste, at a coal mineMETHANECoal mine productSIXTEENTONS*Tennessee Ernie Ford hit about coal miningNEWCASTLEEnglish coal mining cityTRAMCoal mine carrierESSENZollverein Coal Mine citySAAREuropean coal mining district.DAMPSCoal mine grass.SAARGermany's coal-mining valley.OPERATORCoal-mine boss.PITSCoal mine shafts.PITSCoal mines.REOPENWhat the coal mines do periodically.SAARCoal mining region.DAMPPoisonous vapor in coal mines.SAARFrench-German river, flowing through coal-mining region.MONSBelgian city, coal-mining center.MONSCity in Belgium coal-mining center.HAMMCoal-mining city in Germany.TRAMCoal mine car.DAMPCoal mine gas.HAZLETONCoal-mining city of Pa.SAAREuropean coal-mining regionJINNYCoal mining engine.SPRAGRoof prop in a coal mine.BORDCoal-mine roadTRAMCoal-mine vehicleSLAGCoal-mining wasteHUNTINGTONCoal-mining city of West VirginiaTINTORio ___, multinational coal-mining giantAPPALACHIACoal-mining centerBLACKHOLECoal mine, perhaps?CANARYCoal mine creatureCANARYBird in a coal mineRUHRCoal-mining region of North Rhine-WestphaliaPITTSTONPennsylvania city once famous for coal miningFIREDAMPCoal mine's combustible gasSEAMCoal mine findPITMENChaps in a coal mineCANARYRaiser of alarm in a coal mineORECARVehicle in a coal mineTRAMCoal-mine conveyance