Related by context. Frequent words. (Click for all words.) 37 mine shaft 33 miners 32 miner 31 trapped underground 31 rescuers 30 trapped miners 30 miners trapped 29 mine shafts 29 mine 28 coal mine 28 crevasse 28 mining 28 adit 27 crevice 27 shaft 27 cavers 26 mine workings 26 mountainside 26 Crandall Canyon Mine 26 trench 26 cave 26 Crandall Canyon mine 26 mines 26 trapped 25 boulder 25 Rio Blanco 25 W.Va. mine 25 canyon 25 orebody 25 ravine 25 creek bed 25 tunnels 25 underground workings 25 Mine Safety 24 ledge 24 roadbed 24 tunnel 24 Chilean miners 24 Crandall Canyon 24 Mine 24 riverbed 23 creek 23 coal miner 23 manhole 23 coalmine 23 rockfall 23 Rescuers 23 ore grades 23 gorge 23 shafts 23 coal seam 23 winched 23 capsule 23 steep embankment 23 climbers 23 entombed 23 coal miners 22 Whittall 22 Sago Mine 22 mountain 22 coal mines 22 coal seams 22 rockslide 21 drainage pipe 21 cliff 21 chute 21 Perilya 21 MSHA 21 cavern 21 mined 20 outcropping 20 ore 20 sinkhole 20 coal mining 20 wellbore 20 leach pad 20 weir 20 caves 20 mineralized zone 19 Hecla 19 HUNTINGTON Utah 19 borehole 19 caldera 19 elevator shaft 19 Martian surface 18 underground 17 underground tunnels 17 longwall 17 stairwell 17 excavator 17 Harmony Gold 17 pit 16 crater 15 quarry 14 tailings pond 14 Coal Mine 14 colliery 14 Gold Mine 11 coalfield 10 slopes 8 Cigar Lake