Saguaro National Park, AZ / Tucson Mountain Unit, with Saguaro cacti, Carnegiea gigantea, silhouetted against the setting sun with Waterman & Silver Bell Mtns. background. 740V4
Saguaro National Park, AZ / Tucson Mountain Unit, with Saguaro cacti, Carnegiea gigantea, silhouetted against the setting sun with swirling storm clouds in background. 704V2
Saguaro National Park, AZ / Sunset over Silver Bell Mountains, with saguaro cacti, Carnegiea gigantea, in the Tucson Mountains silhouetted. 804H10
