The Sacaton Mine was an open pit copper mine that operated between 1974 and 1984. The mine is 3,100 feet across and almost 1000 feet deep! From the sky it almost looks like an eye looking up at you from the desert floor.
I found the Sacaton mine one day while looking at Google Maps. I saw a place titled "The Eye of Grande" and eagerly zoomed in. After a little research I decided to head down to check it out with my drone.
The mine is located about 5 miles northwest of Casa Grande, Arizona just off Biano Road.