arizona state highway sr87 as it winds through the mcdowell mountain range in northern arizona

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 national natural nature north northern outdoors park pass payson phoenix quiet ram range reserve ridge rincon rock rocks rugged saguaro sates semidesert spectacular sr87 state sycamore tonto trails united usa valley views wilderness winds winter