Ключевые слова: abstract, backgrounds, bulldozer, business, caterpillar track, closeup, detail, digging, dirt, earth, earth mover, excavation vehicle, extreme terrain, gravel, industry, land vehicle, loader, machine, machinery, mine, mineral, mining, offroad vehicle, open pit mine, outdoors, pattern, physical geography, quarry, removing, rock strata, rough, sand, shadow, soil, textured, textured effect, tire, tire track, track, truck, underground, vertical,