Ключевые слова: america, arizona, blue, bright, cacti, cactus, canyon, cholla, dark, desert, desolate, erosion, formation, geological, geology, landscape, mountain, natural, nature, open, orange, outdoors, outstanding, park, prominent, red, rock, rural, saguaro, sandstone, sedona, sky, solitude, sonora, southwest, southwestern, stately, sunny, sunset, travel, tree, vegetation, weathered, white,