Phil, maybe the search function can pull up Jay Flemma's thread with photos of that one, which I thought was quite an interesting design. I hate rock walls in general, when they are built as some sort of landscaping feature in or near greens and likely areas of play. But Greywalls, and I suspect that OK course are quite a different story due to their honestly natural setting. I liked the Greywalls holes. Old Hickory is sort of alright - not my favorite, nor are the holes up at Devils Head in Baraboo area.