By coincidence, I was out at High Pointe ten days ago, on my way back from the Renaissance Cup at Forest Dunes. A writer asked about it and I said I thought they hadn't torn up the holes out in the back 40, so we went out to see. Sure enough, holes 10-15 are "intact," if that's the right word ... they logged all the pines between 11-12-13-14, so the land looks remarkably similar to how it looked when I first saw it. It's too bad six-hole courses aren't a thing, that would be a pretty good one.
I intend to go out and survey the 13th green this fall so I can build a replica of it somewhere, someday.
It was very interesting to see it again after so long ... it was hillier than I remembered and those holes were quite a hike, obviously the work of a much younger designer with strong legs.