Ключевые слова: above, aerial landscape, aerial photography, aerial view, background, bird eye view, building, construction, contamination, czech republic, environment, environmental, europe, european union, excavator, extraction, factory, granular, gravel pit, halamky, heavy, industrial, industry, infrastructure, lake, landscape, luznice, manufacturing plant, material, mine, minerals, open, outdoor, pile of sand, pit, production, quarry, sand, sandpit, sorting, texture, top, tower, trebon, water, workplace,