Related by context. Frequent words. (Click for all words.) 66 mine tailings 64 tailings 63 mill tailings 63 evaporation ponds 63 tailing ponds 59 tailings impoundment 58 alluvium 57 sediment 57 Tailings 56 polluted groundwater 55 rock outcrops 54 glacial till 54 alluvial deposits 54 Hobet 54 heap leach pad 54 Alluvial 54 calcrete 53 lakebed 53 soils 53 mine workings 53 gravels 53 igneous rock 53 Sediments 53 surficial 53 contaminating groundwater 53 streambed 53 lake sediments 53 leaching 53 groundwater 53 tailings dam 52 marine sediments 52 leach pads 52 sediments 52 earthen dams 52 basaltic 52 contaminated soils 52 contaminated soil 51 riverbed 51 limestone 51 Uravan 51 silt 51 sulfide 51 stopes 51 caliche 51 skarn mineralization 51 tailings pond 51 Dewatering 51 Milltown Dam 51 haematite 51 quicklime 51 Sediment 51 frac sand 51 fly ash 51 Chromite 51 gossan 51 adits 51 Uranium mineralization 51 rock outcrop 50 quarry 50 limestone quarry 50 gravel quarry 50 heap leach operation 50 limestones 50 mining 50 arroyos 50 streambeds 50 silica 50 lava tubes 50 sulphide ore 50 sulfide mineralization 50 Leaching 50 sludge 50 laterite 50 lunar soil 50 open pittable 50 iron oxides 50 graben 50 Rio Algom 50 crushed limestone 50 drainage basins 50 landform 50 LTV Steel 49 sulphide bearing 49 sulphide minerals 49 placer gold 49 dewatered 49 volcanic rock 49 ore 49 opencast mine 49 underground workings 49 feldspar 49 decomposed granite 49 breccia pipe 49 sulfides 49 coke ovens 49 dewatering 49 beneficiation plant 49 porphyry deposit 49 quarries 49 Uranium Mine 49 slurry