The sixteenth hole is named Blinding Cloud of Smoke. The hole is completely lined with bunkers. When you get to the green and look back towards the tees, the bunkers disappear, just like smoke.
This is the most difficult par 4 on Purgatory’s back nine. It ranges from 305 yards short at the front tees to 475 yards long from the back tees. This hole requires a long tee shot that favors the left center of the fairway, and an uphill approach shot to a well bunkered green.
This photo is taken from the green looking back towards the tee. Here you can see how the fairway bunkers disappear when you’re standing on the green looking back towards the tees. The bunkers are flashed into the side of the mounding facing the tees, as a result, you can't see them from the green side.