Related by context. Frequent words. (Click for all words.) 57 shaft 54 mine shaft 48 manhole 47 duct 46 rescuers 46 elevator shaft 46 stope 46 trapped miners 45 underground workings 45 shafts 44 Whittall 44 stairwell 44 underground 44 Rescuers 44 ventilation 43 trench 43 chimney 42 adit 42 stairwells 42 cavern 41 mine shafts 41 tunnels 41 ductwork 41 Crandall Canyon mine 41 Crandall Canyon Mine 41 manholes 40 drainpipe 40 underpass 40 borehole 40 tunnel 40 mine 39 coal seams 39 drainage pipe 39 coal mine 39 ducts 39 ducting 39 miners 38 scaffolding 38 weir 38 crevasse 38 ledge 38 manhole cover 38 girders 38 coalmine 37 winched 37 passageway 37 coal seam 37 pipe 37 basement 37 pipework 37 roof 37 HUNTINGTON Utah 37 miners trapped 37 trapped underground 36 staircase 36 parkade 36 parking garage 36 Rescue crews 36 overpass 36 creek bed 36 culvert 36 rockfall 36 mine workings 36 underground tunnels 36 rubble 36 cave 36 longwall 36 gangway 36 floorboards 36 drainage pipes 35 ceiling 35 toxic gases 35 breathing apparatus 35 cornice 35 waterline 35 wreckage 35 lava dome 35 sump 35 flue 35 ceiling tiles 35 colliery 35 alleyway 35 Cigar Lake 34 engine compartment 34 skylight 34 vents 34 Tunnel 34 vaulted ceiling 34 upper floors 34 elevator 34 miner 34 radiator 34 Shaft 34 laneway 34 trapped 34 poisonous gases 34 cavity 34 airlock 34 storeys 34 crews 34 oxygen mask