a desert mountainside landscape with saguaro cacti, prickly pear, ocotillo, palo verde trees and scrub brush

saguaro national park tucson mountain district arizona usa botany nature cacti vegetation outdoors spring landscape desert tourism travel adventure vacation sight solitude peaceful creosote bushes hiking harsh environment ecosystem rugged mountains bucket list west america rocky top blue sky wispy clouds carnegiea gigantea ocotilla fouquieria splendens boulders pima county sus picnic area palo verde dry brush scrub mountainside prickly pear ocotillo trees