Ключевые слова: aerial, aerial view, autumn, balkans, bulgaria, cascade, dam, dospat, dospat dam, dospat reservoir, drone, engineering, environment, europe, fall, forest, gorge, hill, hydro, lake, landmark, landscape, leisure, meadow, mountain, natural, nature, panorama, peninsula, power, reservoir, resource, rhodope, rhodope mountains, rhodopes, river, rodopi, scenery, scenics, sight, sightseeing, smolyan region, summer, terrain, tourism, travel, tree, view, water,