Ключевые слова: autumn, background, clouds, color, day, douro, douro river, douro valley, ed, europe, fall, fog, green, harvest, hiking, hill, industry, landscape, meadow, mountain, mountains, naturally, outdoor, panorama, park, pinhao, port wine, portugal, portwine, postage, reflection, scenery, scenic, season, sky, summer, terraced, tourism, travel, trip, valley, view, vineyard, vineyard landscape, vineyards, viseu, water, wine, wine region, yellow,