Related by context. Frequent words. (Click for all words.) 69 coal mine 65 coalmine 61 Coal Mining 60 colliery 59 coal mines 56 coalmines 55 Mine 55 mine 55 coal mining 53 Colliery 52 Coal 52 coal miners 51 Pingdingshan 50 miners 49 Gold Mine 49 coal miner 49 collieries 48 Coal Miners 47 Sago Mine 46 coal 46 coalmining 46 Coal Mine Safety 45 coal seam 45 Shanxi province 45 Mine Safety 45 Mining 45 Zijin 45 miner 44 Copper Mine 44 mines 44 coalfield 44 Shanxi Coal 44 mining 44 coke oven 43 Kemerovo region 43 MSHA 43 Sago 43 Quecreek 43 CONSOL 43 uranium mines 42 tailings dam 42 Taum Sauk 42 Aracoma 42 coke ovens 42 Raspadskaya mine 42 Guizhou province 42 Zijin Mining 41 limestone quarry 41 Shanxi Province 41 longwall 41 stone quarry 41 Shaanxi province 41 thermal coal 41 trapped miners 41 Natural Gas Pipeline 41 Furnace 41 goldfields 40 iron ore mines 40 Power Plant 40 Linfen 40 coalfields 40 Taconite 40 coal seams 40 Zijin Mining Group 40 Xstrata Coal 40 Yanzhou Coal 40 mineshaft 40 Bowen Basin 40 Iron Ore 40 blast furnace 40 UMWA 40 Raspadskaya 40 Coalfield 40 mine shaft 39 smelter 39 Ulan 39 lignite coal 39 Perilya 39 Sago mine 39 coking 39 bituminous coal 39 rockfall 39 ore 39 Shanxi 39 W.Va. mine 39 ferronickel 39 Tonghua 39 Patriot Coal 39 copper smelter 39 Montcoal 39 steel mill 39 longwall mining 38 Tailings 38 bauxite 38 coking coal 38 Ansteel 38 Escondida 38 zinc smelter 38 Crandall Canyon 38 Fuxin 38 Laiwu Steel