saguaro and papago buttes under a cloudy sky, phoenix arizona

rock landscape wilderness mountain tree nature geology terrain hill plateau plant valley cliff formation wadi flower canyon arch saguaro papago buttees butte buttes cloudy sky popular urban hiking scenic views colorful variations situated phoenix tempe scottsdale holes voids tafone formed arkosic conglomeretic sandstone formations midcenozoic debrisflow breccia overlying precambrian granite conglomeratic cactus largest native arizona majestic palo verde dessert fauna orange dominant sunlight overcast cloud tourist tourism resort hike sahuaro