Umm. With all these recent topic on land clearing, do you think that some might be for one reason: A tree is rotting or fell, and needs to be removed? That could be the answer to a lot of these. But this is not one that sounds like it.
For all you know, it might be a new bathroom, and the footers are probably Whizzer's. Did you know that I heard a rumor that Whizzer at SFGAm was being moved to PGA? Doubt it will happen. Probably a new bathroom, or maybe access to more land so they can put in another coaster.
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Everybodys got something to hide except for me and my monkey!