Joel, et al. the back right bunker looks contrived to me. But, that's only because in the '98-'02 era, it was likely the most penal of all the bunkers at Spy, save for the front of #2. Which has also been homogenized. (Stress on the homo).
The sand, as I recall it, was a greyish color and had the consistency of beach sand.
I learned a very important lesson on this green. That's how wind can affect putts. It was the '00 AT&T. My player had a putt that I knew broke about a foot or so to the left. With the wind whipping down over the ridge of the 3rd tee, his putt broke at least 3 feet to the right.
At that time they also added the newer rear tee. It was farther back and much further right of the old teeing ground. I believe the new yardage from that back tee was 185ish. Uphill at sea level. No slouch.