Related by context. Frequent words. (Click for all words.) 51 coal miners 50 miners 49 coal mines 49 coal mine 48 mines 48 coalmines 46 mining 45 coalmine 45 Coal Mine 44 coal mining 43 Driefontein 43 Antamina 43 ActiveMine 43 Sago mine 43 mine 43 UMWA 42 Kuzbass 42 Coal Mining 41 collieries 41 miner 41 coal 41 Metallurgical coal 40 Sago Mine 40 bituminous coal 40 CONSOL 40 Mining 40 Sago mine disaster 40 Coal Mine Safety 39 Kemerovo region 39 AngloGold Ashanti 39 MSHA 39 mineworkers 39 Marikana 39 Mine Safety 38 Mine 38 molybdenum 38 uranium mines 38 underground 38 Pasta de Conchos 38 longwall 38 nonferrous 38 taconite 38 iron ore exporter 38 longwall mining 38 Assmang 37 Xstrata Coal 37 coalfield 37 coalfields 37 Yuzhkuzbassugol 37 COAL 37 Northam Platinum 37 Implats 37 CNX Gas 37 NYSE ANR 37 Chirano 37 refined zinc 37 pneumoconiosis 37 Company NYSE MEE 37 AngloGold 36 coal seams 36 coal seam 36 Diavik 36 Ahafo 36 Aquarius Platinum 36 Weirton Steel 36 ferrochrome 36 Stillwater Mine 36 opencast 36 coal miner 36 colliery 36 Mount Polley 36 Sago Mine disaster 36 copper 36 metallurgical coal 36 Surface Mine 36 dragline 36 NYSE CNX 36 Taconite 36 Mines 36 DRDGold 36 Impala Platinum Holdings 36 mined 36 metallurgical 36 Kumtor 36 Grasberg 35 stopes 35 coking coal 35 Raspadskaya 35 thermal coal 35 vertical shaft 35 Sago Mine explosion 35 Montcoal W.Va. 35 iron ore 35 Marcellus shale 35 iron ore mines 35 DRDGOLD 35 Chilean miners trapped 35 Coal Miners 35 ore 35 Raspadskaya mine 35 MINING