My friend and I seen this square ufo at my fluorspar mine, it was about 40+40+40ft. it did not have any lights on it, my lights reflected on it, we pulled up to get a better look, we were about 150 ft. from it, we talked about it and were amazed at it, we thought the farmer had built a building from 9:30 that morning to then. it is on a fault of fluorspar, zinc and lead, my contract did not let me mine under a structer or water impoundment, I was mad to think the farmer would do this to me, I tied my friend that in the morning I would go to talk to him and make him move it before it got any further and at that moment we saw a light come around the building and go out of sight on the other corner, than I told my friend I would go talk to the farmer and at that time it just went away no noise streaks no nothing just gone.