Ключевые слова: altai, appalachia, appalachian, background, beautiful, beauty, blue, cascade, creek, environment, exposure, fall, flow, flowing, fog, foliage, forest, fresh, green, landscape, leaf, light, long, mist, moss, motion, mountain, mountain river, national, natural, nature, nobody, outdoor, park, river, rock, scene, scenic, season, smoky, speed, spring, stone, stream, summer, tree, water, waterfall, wet, wood,