Ключевые слова: america, badlands, blue, canyon, clouds, colorful, desert, environment, erosion, formation, geology, grass, hiking, hills, hoodoo, horizontal, lakota, landscape, mako sica, midwest, national, natural, nature, north dakota, north unit, orange, outdoor, painted, panorama, park, picturesque, scenery, scenic, summer, theodore roosevelt, tourism, travel, united states, valley, view, weathering, yellow,