Amado, Green Valley, and Madera Canyon Professional Review and Guide
"This day trip is devoted to manufactured wonders of the high-tech world. Because of the time involved for the tours, if you want to cover both sights, I recommend going first to Amado and Whipple Observatory and then seeing the Titan Missile Museum on the way back to Tucson. This is not recommended for young children, but older children and teenagers will enjoy it. Operated by the Smithsonian Institution and the University of Arizona, Whipple Observatory near Amado sits atop Mount Hopkins, the second-highest peak in Arizona.
It commands a heavenly panorama north beyond Tucson and south into Sonora, Mexico, over hundreds of miles of saguaro-studded Coronado National Forest, desert floor, and rolling mountain ranges. Visitors take a daylong tour that describes a brief history of astronomical time and includes visits to the computer laboratories, massive telescopes, optical arrays, and celestial mirrors."