Related by context. Frequent words. (Click for all words.) 51 stope 50 MSHA 50 mine 48 coal seam 48 coal mine 47 stopes 47 coal mining 47 mill throughput 46 coal mines 46 coalmine 46 mines 45 Consol 45 Mine Safety 45 Mine 45 tailings dam 44 coal seams 44 mine shaft 44 rockfall 44 coal 44 coalmines 43 CONSOL 43 heap leach 43 ore grades 43 metallurgical coal 43 underground workings 43 miner 43 ore mined 43 stoping 43 Kemess 42 dewatering 42 mining 42 Sago Mine 42 vertical shaft 42 Crandall Canyon 42 Jerritt Canyon 41 coking coal 41 Xstrata Coal 41 Coal Mine 41 drill rig 41 shaft 41 Sago mine 41 Patriot Coal 41 subsidence 40 heap leaching 40 drilling 40 coal miner 40 conveyor 40 miners 39 drill rigs 39 bulk sampling 39 colliery 39 leach pad 39 trapped miners 39 blast furnace 39 orebody 39 Stickler 39 joist 38 coal miners 38 tailings 38 mine workings 38 Anglo Coal 38 ore 38 Coal Mining 38 CNX Gas 38 Mtpa 38 Massey 38 adit 38 Oppegard 38 Sago 38 DRDGold 38 Crandall Canyon mine 38 UMWA 38 Penasquito 38 drilling rig 38 Crandall Canyon Mine 37 Cabin Creek 37 coalfield 37 Bowen Basin 37 AngloGold Ashanti 37 coalbed methane 37 electric arc furnace 37 rockfalls 37 Mining 37 collieries 37 molybdenum 37 Pilbara 37 alumina 37 Powder River Basin 36 Consol Energy 36 coking 36 Cigar Lake 36 seismic activity 36 metallurgical 36 smelter 36 iron ore mines 36 Pascua Lama 36 mountaintop removal mining 36 Massey Energy 36 ventilation shaft 36 Gloucester Coal 36 thermal coal