San Manuel Mine. 2011-01-3313, ADMMR mining collection, Arizona Geological Survey. Schwartz, G.M., 1953, Geology of the San Manuel copper deposit, Arizona: U.S. Geological Survey Professional ...

When operational, the $2.16 billion mine is slated to produce zinc, manganese, lead and silver in a large underground facility in the Patagonia Mountains, about 75 miles southeast of Tucson.

Scientists just confirmed a 30-foot void first detected inside the monument years ago. Here’s the technology that helped scientists find it—and what it may have been used for.

Tunnel to Summer, The Exit of Goodbyes is much more affecting in its quieter moments and when Kaoru and Anzu explore the tunnel. Full Review | Original Score: 3/5 | Aug 4, 2023 ...