shaft mine

abandoned adit architecture black building buttress coal coalmine colliery colors decay derelict dig dirt disused elevator energy engineer engineering entrance excavate extracting extractive forest frame gear geology gold head headframe headgear heritage historical history hoist industrial industry job lift machine machinery manufacturing metal mill mine miner mineral miners montana old ore pickaxe pioneer pit pithead plant poland power profession reclaim redundant regeneration reinforce retro ruin safety shaft silesia skill sky steel sunset traditional tree underground vintage wheel work