Related by context. Frequent words. (Click for all words.) 63 taconite 63 Taconite 58 Iron Range 56 Mesabi Nugget 55 iron ore mines 55 Hoyt Lakes 54 iron ore pellet 54 pelletizing 52 Cleveland Cliffs 50 Nashwauk 50 PolyMet 49 LTV Steel 48 potlines 48 lumber mills 47 smelters 47 Iron Range Resources 46 Upper Peninsula 46 Stillwater Mine 46 sawmills 46 metal stamping 46 ferro alloy 46 smelter 45 Eveleth 45 smelting 45 mines 45 mtpy 45 Algoma Steel 44 Allete 44 frac sand 44 copper smelting 44 mills 44 furnaces 44 steel mills 44 pig iron 43 Denison Mines 43 sawmilling 43 Wabush Mines 43 Mesabi Range 43 coal 43 Minnesota 43 Stillwater Mining Co. 43 Essar Steel Algoma 43 NewPage 43 coal mines 43 grade ores 43 heap leach operation 43 CBM wells 42 copper nickel 42 Essar Steel 42 Powder River Basin 42 plywood mill 42 Allegheny Ludlum 42 aluminum smelters 42 Lac des Iles 42 uranium mines 42 MMgy 42 temporary shutdowns 42 Myra Falls 42 coke ovens 42 idled 42 SunCoke 42 sulfur dioxide nitrogen oxide 42 feedgrounds 42 WCI Steel 42 Stillwater Mining 42 production curtailments 42 chlor alkali 42 Hibbing 42 titanium sponge 42 mercury emissions 42 rustbelt 42 sulfur dioxide emissions 41 Intermet 41 plants 41 sulfur coal 41 Wyoming Powder River 41 wastewater discharges 41 iron castings 41 LKAB 41 trona 41 copper smelters 41 stockpiled ore 41 Appalachian basin 41 Horsehead 41 #.#Mtpa 41 coking coal mines 41 Jerritt Canyon 41 Middletown Works 41 soda ash 41 Cliffs Natural Resources 41 Laiwu Steel 41 evaporation ponds 41 ferrosilicon 41 Wheeling Pitt 41 Metallurgical coal 40 iron ore pellets 40 hazardous waste landfill 40 blast furnaces 40 North Dakota 40 coalmines 40 mill