Related by context. Frequent words. (Click for all words.) 60 Mountaintop removal mining 58 ridgetops 57 See Using SAinfo 55 mountaintops 55 Mountaintop removal 54 unlined pits 54 intermittent streams 53 scoria 53 By Laurie Kulikowski 53 Landslides blocked 53 scatter radioactive 52 By JEFF BLAIR 52 By Tona Kunz 52 molten rocks 52 basalt rock 52 Mountaintop mining 52 KINSHASA Congo Fabulous 51 seafloor methane 51 mountaintop removal mines 51 lava flowed 51 avalanche chutes 50 forest undergrowth 50 steep ravines 50 mountain ridges 50 windblown dust 50 compacted clay 50 ridge tops 50 blowdowns 49 joist girders 49 coalbed 49 hollows 49 coal seams 49 valley fills 49 nitrogen oxides sulfur dioxide 49 coalbeds 49 lateritic 49 escarpments 49 boulder strewn 48 shallow depressions 48 deadfall 48 ventilate lethal carbon monoxide 48 triggering mudslides 48 upper elevations 48 molten magma 48 volcanic lava 48 wooden boardwalks 48 hardpack 48 spews ash 48 Mayon slopes 48 Uprooted trees 48 Nitrogen oxide 48 porous limestone 48 culm 48 grassy meadows 48 clasts 48 Hydraulic fracturing 48 dolerite 47 methane CH4 47 pyroclastic 47 twisted girders 47 biomass combustion 47 volcanic craters 47 joists beams 47 buildings antennae spans 47 permafrost melts 47 cyanide heap leach 47 bentonite clay 47 carbides 47 Carbon dioxide CO2 47 bitumen tar 47 pervasively altered 47 fungus spores 47 spruce fir 47 Shiveluch 47 pneumatic drills 47 metalled road 47 detonating cords used 47 heavily timbered 47 above timberline 47 sulfur dioxides 47 slickrock 47 Overburden 47 gasifying 47 gulleys 47 abrasive blasting 47 boulders 47 chaparral covered 46 Cagsawa 46 chimney stacks 46 mercury emitted 46 halite 46 Bottom trawling 46 crystalline silica 46 pollute waterways 46 opencast mines 46 Neutron stars 46 Pir Panjal range 46 Nitrogen oxides 46 absorb rainwater 46 unexplainably pulled 46 Dump trucks