Ключевые слова: backdrop, background, big, building, coal, construction, crust, deep, development, digging, dump, dust, ecology, environment, equipment, excavation, extraction, factory, geology, heavy, hole, horizon, industry, iron, landscape, layer, machinery, material, metal, mineral, mining, nature, opencast, ore, panorama, pattern, pit, plant, quarry, raw, red, resource, road, rock, slope, stone, surface, technology, texture, view,