Norby, I'm not sure what aspects of comparison you are looking for. Do you mean waste like that that must be do or die all carry? If it is just a matter of other waste-sand, man made areas of similar size, well wouldn't the space between 4 and 14 of Chambers Bay with partial carry if you are to be very agressive, be a comparable? I tried the Google planimeter, and got 14 acres! On the other hand, the natural sand-waste area on left side of Sand Hills 18, where the wind mill is located, is looking like around 2.7 acres, conservatively measured. The Dismal River satelite photo isn't up yet, but I think they have a doozy of waste out there as well. similarly, the totally created moonscape between 4 and 5 of Whistling Straits is about 35 acres and the functional potential big hitter carry on 5 takes in about 3.5 acres.