The outer edges of Tucson, Ariz., are visible at this overlook in the eastern section of Saguaro National Park. The cactus forest here has diminished since the 1930s.
The outer edges of Tucson, Ariz., are visible at this overlook in the eastern section of Saguaro National Park. The cactus forest here has diminished since the 1930s. dmiddlecamp@thetribunenews.com
The outer edges of Tucson, Ariz., are visible at this overlook in the eastern section of Saguaro National Park. The cactus forest here has diminished since the 1930s. dmiddlecamp@thetribunenews.com

Saguaro National Park: In the land of giants

May 31, 2013 2:53 PM