Didn't this happen way back in 07?
It is interesting though, Ive done a lot of spelunking and seem my share of glory holes. All the natural one ive seen are jagged and non-uniform in shape.
When we went in the old abandon mines in china camp we found quite of few where the roof of the mines caved in and created a open air hole again never as round and uniform as this one.
Looks like an alien drill hole.
