Related by context. Frequent words. (Click for all words.) 75 quarry 63 quarrying 58 limestone 52 mines 52 gravel pit 51 Quarry 50 coal mines 50 gravel 48 aquifers 48 sawmills 47 excavation 47 mining 47 landfill 47 gypsum 47 caves 47 tailings 46 sawmill 45 sandstone 45 groundwater 45 excavated 44 mined 44 mills 44 excavations 44 dairy farms 43 excavating 43 mill 43 ponds 43 foundries 43 smelters 43 coal mining 43 dams 43 ore 43 bauxite 43 steel mill 43 dairy farm 43 topsoil 42 sinkholes 42 scrap metal 42 excavators 42 landfills 42 masonry 42 aquifer 42 smelting 41 asphalt 41 slag 41 gravel roads 41 caverns 41 dairies 41 silt 41 archaeological 41 sewage treatment 41 cemeteries 41 archeological 41 archaeological sites 41 granite 41 ores 40 riverbed 40 lagoons 40 rivers 40 mine 40 reservoirs 40 incinerators 40 factories 40 sand 40 lakes 40 excavate 40 phosphate 40 abattoir 40 Lafarge 39 dump trucks 39 effluent 39 waste disposal 39 shipyards 39 roads 39 constructions 39 Cement 39 farms 39 steel mills 39 basins 39 wastewater treatment 39 woodlands 39 diggers 39 foundry 39 sewerage 38 graveyards 38 monuments 38 waterways 38 sand dunes 38 castings 38 sediment 38 riverbanks 38 soils 38 stones 38 plants 38 smelter 38 dredge 38 coal 38 crusher 38 greenfield 38 haulage 38 slabs