Ключевые слова: aerial, build, canyon, chalk, chalkquarry, construct, construction, day, deposit, development, dig, dragline, earth, earthmover, environmental, excavation, excavator, expand, extraction, geology, gravel, ground, heavy, industrial, industry, lake, land, landscape, machinery, mineral, mining, mountain, natural, pit, pond, quarry, rock, scenery, scenic, small, soil, stone, sunny, upper, vehicle, view, walking, work,