While it may not be all-world, from this picture it appears to be a breather hole, but still commands a challenge. The raised green is awesome, IMO. And, if you just showed me this green and didn't tell me where or who, i'd guess DR.
With the description of the rocky land in Ct. and seeing the other pictures of this course, I don't see where it is, unnatural.
It looks like many of the small windblown plateaus that grace my vision everyday here in rocky New Mexico.