That greensite is all natural. The top of the dome was just slightly knocked down a bit.
Brendan,
Thanks for clarifying this. There didn't appear to be any land forms surrounding the green complex to give the indication it was "all natural." It looks like the sides were dug down or the pad was built up.
As I stated, I have no problem with this green but it is shocking to come over the hill for the first time and see it!
Ken