Sonoran Desert National Monument, AZ / Saguaro cactus (Carnegiea gigantea) with Sand Tank Mtns. at sunset . 12001V5

Sonoran Desert National Monument, AZ / Saguaro cactus (Carnegiea gigantea) with sunset light on the Sand Tank Mtns. 12001V5

Sonoran Desert National Monument, AZ / Close-up of Saguaro cactus (Carnegiea gigantea) with patterned, discolored sun-exposed skin in the Sand Tank Mtns.12001V6