Ключевые слова: autumn, avila, beautiful, blue, clouds, colorful, countryside, environment, europe, fall, foliage, forest, geology, grass, gredos, green, high, hiking, landscape, mountain, mountains, natural, nature, outdoor, panorama, park, peak, rock, scenery, scenic, season, sky, spain, stone, summer, tourism, travel, tree, trees, valley, view, water, wood,