Other Photo Albums Mining in the valley Mt Graham Telescope Schools ------------------- Return to Photo Library Mt Graham Telescope Mt. Graham International Observatory is a division of Steward Observatory, part of the Department of Astronomy at the University of Arizona. Scientific researchers from around the world make use of MGIO facilities located on Mt. Graham in the Pinaleņo Mountains in southeast Arizona. This area is p... Other Photo Albums Mining in the valley Mt Graham Telescope Schools ------------------- Return to Photo Library