Ключевые слова: break, conservation, construction, crack, crude, desert, drill, dynamite, early, equipment, erosion, excavator, extraction, golf, granite, gravel, green, heavy, hike, historical, industrial, industry, lds, machine, material, mine, old, pit, quarry, rock, rubble, sage, sandstone, sediment, st, stone, technology, temple, trail, trees, work,