Ключевые слова: america, attraction, beautiful, beauty, blue, canyon, cliff, colorful background, environment, erosion, grand, grand canyon of the yellowstone, landmark, landscape, lower, lower falls, mountain, mountain river, mountains, national, natural, natural background, nature, outdoor, park, peaceful landscape, powerful, river, rock, scenery, scenic, sky, spectacular, stream, summer, tourism, travel, united states, usa, vacation, valley, view, water, wilderness, wyoming, yellow, yellowstone, yellowstone national park, yellowstone river,