historic route 66, southwest usa

66 agavaceae america arid arizona background blue botanical botany bush bushes cactus canyon color colorful creosote curve curves curvy desert detail drive driving environment erosion flora floral flower foliage garden green grow highway hill landscape leaf line mohave mojave motoring mountain mountains natural nature plant red road roadway rock rocks rocky sandstone scenery scenic sixtysix sky southwest succulent usa valley vegetation west western wild wilderness winding windy yucca