Porcupine Creek is the polar opposite of Stone Eagle - Stone Eagle being a minimalist course in a sea of excess. Porcupine Creek is NOTHING BUT excess. The story told me was Blixseth purchased, or had access to 3 nurseries and emptied their inventory on this land. Their is rarely a moment on the course when you see other holes, the holes being separated by an absolute jungle of trees. Estimates I've heard on cost of construction ranged from $50M-$110M.
The course does have quite a bit of character with some memorable holes (the downhill - as in 100-plus foot drop - par 3 on the back nine being one), but does not play like a championship course as it is VERY short, it's only defense being small greens protected by sand, water, etc. This seemed appropriate given the majority of play on it is charitable outings filled with non-golfers and high-handicappers.
The course is in remarkable condition, exactly what you'd expect from one with annual rounds numbered in the hundreds.
I received an interesting observation from Mike Keiser when asking him if he'd played it. He had, and remarked, "I don't like playing a course where I can get hurt", referring to the 5th hole, a short (130ish yards) downhill par 3 with bunkers all around, and the front bunker including a rock wall. Huh? A green-side sand shot straight at a rock wall? It's true. And that leads to another story about it's building. Legend has it that when Blixseth was still married to Edra, he'd make note of spots on the course Edra regularly played to, and then place a bunker in that spot. Might explain the end of their marriage
. Needless to say, there is a fair amount of sand, in addition to the jungle of trees.