Related by context. Frequent words. (Click for all words.) 60 Aracoma Alma No. 56 Sago Mine 51 Montcoal 51 coal mine 50 Aracoma 50 Sago mine 50 MSHA 49 Ulyanovskaya mine 49 Raspadskaya mine 49 Sago 48 Sago Mine explosion 48 Monongah 48 Coal Mine 48 Mine Safety 47 Crandall Canyon mine 46 Sago Mine disaster 46 Randal McCloy Jr. 46 Crandall Canyon Mine 46 By KBJR News 46 Crandall Canyon 45 Sago mine disaster 45 Sago miners 45 Chernobyl reactor 45 Upshur County 44 Wangjialing mine 44 mine shaft 44 coal seam 44 Quecreek 44 Harlan 44 Montcoal W.Va. 43 MSHA inspectors 43 coalmine 43 Orangeville Utah 43 Surface Mine 43 coal slurry 43 Sago Baptist Church 43 mine 42 longwall 42 trapped miners 42 coal mines 42 coal miners 42 Massey Energy 42 Coal Mine Safety 42 Pingdingshan 42 Taum Sauk 42 Kleen Energy plant 41 Pasta de Conchos 41 Amish schoolhouse 41 colliery 41 Quecreek Mine 41 Yuzhkuzbassugol 41 Cabin Creek 41 coal mining 41 Mine Workers 40 de Sabinas 40 Stricklin 40 W.Va. mine 40 McCloy Jr. 40 longwall mining 40 Oppegard 40 spokeswoman Lara Ramsburg 40 Kemerovo region 40 Randal McCloy 40 gallon propane tank 40 coalmines 40 tailings dam 39 explosion 39 combustible dust 39 naturally occurring methane 39 miners 39 EQ Industrial 39 Blankenship 39 Mine 39 blast furnace 39 Yuzhou 39 Fuxin 39 Gillenwater 39 Gov. Joe Manchin 39 mine shafts 39 Kleen Energy Systems 39 Letcher 39 Tony Oppegard 38 By Times.am 38 Buckhannon 38 Browns Ferry 38 NIOSH 38 Doddridge County 38 J. Davitt McAteer 38 Dai ichi complex 38 PIKEVILLE Ky. 38 West Virginia 38 Comair Flight 38 Chemical Safety 38 coke oven 38 mine subsidence 37 Raspadskaya 37 miners trapped 37 spokeswoman Amy Louviere 37 ventilation shaft 37 error 0 LOB 37 UMWA