Related by context. Frequent words. (Click for all words.) 62 mine shaft 58 mines 54 shafts 54 coal mines 53 mine workings 52 mineshaft 50 adits 50 mine 49 coalmines 49 coal mine 49 miners 48 tunnels 48 caves 48 coal seams 48 ventilation shafts 47 quarries 47 collieries 47 underground workings 47 mine tailings 46 caverns 46 stopes 46 shaft 45 mining 45 colliery 45 mined 44 manholes 44 trapped miners 44 Mine 43 stope 43 quarry 43 adit 43 coal mining 43 coalmine 42 cavern 42 lodes 42 cave 42 underground caverns 42 coal miners 42 limestone quarry 41 coalfield 41 opencast 41 ventilation shaft 41 miners trapped 41 coke ovens 41 underground 41 cave ins 41 miner 40 coal seam 40 uranium mines 40 poisonous gases 40 underground tunnels 40 trench 40 gullies 40 vertical shaft 40 tailings 40 creeks 40 Colliery 40 tailings dam 40 Mining 40 riverbed 39 geologic formations 39 mountainsides 39 roadbed 39 crevasses 39 drill holes 39 sinkholes 39 rock formations 39 Tailings 38 chlorides 38 coal slurry 38 creek bed 38 longwall mining 38 Gold Mine 38 mineworkers 38 canyon 38 breccias 38 drainage pipe 37 trestles 37 cavers 37 reservoir 37 Coal Mine 37 artisanal miners 37 trapped underground 37 valley fills 37 beaver dams 37 manhole 37 passageways 37 diggers 37 diggings 37 AngloGold Ashanti 37 holes 36 rivers 36 burrows 36 orebodies 36 methane gas 36 dams 36 feldspar 36 embankments 36 digging tunnels 36 boulders 36 conveyer belts