Ключевые слова: america, american, americans, culture, destinations, devils, devils tower national monument, environment, erosion, formation, formations, geologic formations, geological, geology, granite, grasslands, landforms, landmark, landmarks, landscape, meadow, monolith, monument, monuments, mountain, national, national monument, natural, nature, north america, outdoors, peak, point of interest, prairie, rock, sandstone, stone, terrain, tower, travel, united states of america, usa, vertical, volcanic, west, western, wilderness, woods, wy, wyoming,