Ключевые слова: business, day, device, earthen, earthworks, eastern siberia, ecology, engineering, equipment, flushing, geology, gold mining, highlands, industrial, industrial area, industry, iron, machine, mechanical, metal, minerals, mining, mountain soil, mountains, mud, oymyakon, power, puddle, quarry, russia, shift method, siberia, sky, sorting, summer, water, work, worker, yakutia,