Sean:
Allow me to flush out just the ones from mostly the mountain time zone because it's often underappreciated and certainly not visited by many.
Before going on -- allow me to make a small correction -- I think the public layouts in the Keystone State are VASTLY OVERRATED when held against the level of private designs in Pennsy.
Yes, my rapture for Black Mesa has been stated many times. I see it being among my personal top 100 for sure.
You also have places like Greywalls which Mike DeVries did in Marquette, MI. Few people will get there but the design given the terrain and budget is extremely well done and quite fun to play.
People have already mentioned the likes of Ballyneal -- clearly one needs to throw into the mixture a place like Kingsley -- also in MI. When I see the love that Digest raters give Whistling Straits and even Blackwolf Run -- I have to wonder what people are thinking when you can go to Green Lake and play such a stellar design in the likes of Lawsonia Links.
I am not a huge fan of Sutton Bay but it clearly has the goods to be a top 100 course when you size up the others Digest has mentioned. Again, the issue becomes how many people make the trek to Agar, SD.
Sean, AZ has a few courses of note. I have always been partial to the original 18 at Whisper Rock. Credit Mickelson and Gary Stephenson for a layout that is a tour de force creation of desert golf -- playable but will kick your butt should you simply fail to execute.
I see no reason why a place like Wild Horse is not cited for what it offers. My God, isn't there room for a layout that is so much fun to play and although it's far from being exclusive the design elements to require a real sense of shot control on so many holes there.
Yes, I do really like Glenwild from TF. The Park City area is not a golf hotbed just yet -- but if the economy does turn around there's a location that can offer terrain for even better golf designs.
Doak's Rock Creek in Deer Lodge, MT likely did not get enough raters to see it. I was really impressed with it -- among the 14-15 Doak courses I have personally played -- the cumulative nature of all the par-4 holes there is the finest I have played from his hand to date.
I also have to say this -- Jim Engh's work at Four Mile Ranch in Canon City, CO doesn't have the exclusivity that other designs of his that have been rated -- such as Black Rock and Sanctuary. But at FMR Engh didn't go "over-the-top with insertion of various man-made items -- there are no bunkers on the course yet the land and the manner by which you must handle an array of different green designs and configurations is really compelling stuff.
Sean, I also like what Greg Norman did with his layout at Red Sky Ranch in Wolcott, CO. Yes, Greg has been known to go in a heavy-handed method at times but I can only hope what he did there will be a blueprint for future efforts. I also liked what he did at Doonbeg but others have opined less so.
I have also mentioned the qualities of a place like Wolf Creek in Mesquite, NV. No doubt the classic design lovers will be repulsed by the place. It's clearly man-made to the max but the sheer imagination to bring to life a place in such a Mars-like environment goes far beyond for me at least what was done at Shadow Creek. It's Indiana Jones golf to the max.
There are likely a few others I can add as well -- but I hope if you get the opportunity you can play a few of the ones I mentioned. I will have to add a few of the ones I just listed are private -- Glenwild, Rock Creek, Whisper Rock, and a few others, but there are some really stellar layouts that have a public genesis that can be accessed.