Ключевые слова: abstract, aerial, altitude, america, american, appalachia, appalachian, beauty, black, blue, gradated, gradient, high, landscape, layered, layers, line, mountain, mounts, national, natural, nature, orange, overlook, parks, peaks, pink, purple, ridge, ridgeline, ridgline, silhouetted, silhouettes, simple, simplicity, smokey, smoky, stacked, sunrise, sunset, tranquil, tranquility, treeline, trees, us, usa,