the rugged mountains of the mcdowell mountain range viewed from arizona highway sr87

activities arizona beeline boulder boulders cacti cactus creek desert dry duthiemartin ecological ecology environment flora forest geology highway hiking hwy landmark landscape layers mcdowell mountain mountains national natural nature north northern outdoors park pass payson phoenix ram range reserve ridge rincon rock rocks rugged saguaro sates semidesert spectacular sr87 sycamore tonto town trails united usa valley viewed views wilderness winter