Ключевые слова: autumn, blue sky, clouds, composure, evening, fall, foliage, horizon, keystone lake, keystone lake at sunset, keystone lake in the fall, keystone state park, lake, landscape, laurel highlands, natural landscape, nature, no person, outdoor, outdoors, pennsylvania, reflection, reflection in water, scenery, sky, sunset, trees, water, west moreland county, wilderness, wildlife,