earth-song:  Saguaro Cacti, Saguaro National Park, AZKitt Peak National Observatory is in the background, on the left. The Observatory sits atop Kitt Peak, 6880 feet up in the Quinlan Mountains, 55 miles southwest of Tucson, AZ.The observatory features the largest and most diverse gathering of astronomical instruments in the world, with 23 telescopes. by John-Haig
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