ThanksAwesome!
We drove by the tailings on our way to boondocking out in the desert and I had no idea what type of mine it was. I sent the drone up next day to check it out. I was blown away when the drone crested the top, never expected anything that deep or large. Kinda reminded me of Meteor Crater but much larger, incredibleI visited a friend in Ajo years ago and part of the fun was to go and look at the big hole. This was before I had a drone. Then the water in the bottom was a beautiful copper blue.