Ключевые слова: arm, backhoe, basalt, bucket, bulldozer, claw, claw shovel, conveyor, crater, crushed, developed, diabase, dig, digger, dirt, dredger, dump, earthmoving, excavate, excavation, excavator, geology, gravel, ground, heavy, industrial, loader, machine, machinery, mechanization, mine, mover, nature, petroglyphs, piles, pit, prehistoric, production, quarry, resource, roadwork, rock, rusty, stones, transportation, unloading, vehicle, volcanic, volcano, work,