Ключевые слова: america, ancient, arid, arizona, az, badland, blue, brown, clay, clouds, color, colorful, crystal, desert, desolate, drought, dry, earth, erosion, forest, fossil, geologic, geological, geology, ground, landscape, log, mineral, national, nature, old, orange, park, petrified, red, rock, scene, scenery, sky, southwest, states, stone, terrain, travel, tree, united, usa, wood,