Crossword Clue:

exposed coal in a mine

AnswerCrossword Clue
TRAMCart in a coal mine
ORECARVehicle in a coal mine
SPRAGRoof prop in a coal mine
SPRAGRoof prop in a coal mine.
CANARYRaiser of alarm in a coal mine
PITShaft of a coal mine.
TRAMCarrier of coal from a mine