One thing about Walnut Lane that I've not seen ANYWHERE is the routing of the 4th-6th holes.
Three consecutive par 3s routed in what are essentially an equilateral triangle. The 4th is a long, downhill par 3 that is north of 200 yards I believe, the 5th is the famous "dogleg" par 3 that plays to 175 or so across a valley and the 6th is a slightly uphill proposition in the neighborhood of 160 yards. The 4th tee is the highest point in this routing and one can see play on the entirity of the first 7 holes from there.
Club Selection from the time I played there (note: Tees were up a bit and it was frozen):
4th hole: 6 iron, played to bounce short and run on, stayed a bit short
5th hole: 6 iron with a draw to carry green, overcooked a bit into the left fringe
6th hole: 9 iron to carry green, Thurmon Munson... no happiness found over there.
In the summer, I can see this stretch producing some interesting club selections and shot shapes.