Pros:
The description of a 4.5 rating is "Phenomenal" that about sums it up.
I do not give this rating for "golf challenge" but for the "awe factor." Any other course that I've rated this high has a variety of wooded holes forcing different lines or with different options for lines. This course has a small variety of trees that shape some of the holes, but most of the challenge doesn't come from tight technical fairways but from navigating through the desert canyons through the boulders and rough terrain. Then as you get up on the rim of the canyon the risk/reward factor comes into play where an errant shot may lead to a half hour hike down the side of a cliff if you want your plastic back, if you can find it again.
This is an adventure course at its best, not for the faint of heart. Get a good night sleep, put your hiking boots on, pack plenty of water, bring some snacks, bring a couple discs you might lose, wear jeans, bring a camera and plan for a full day of disc golf. If you're not prepared or not in good shape all 36 holes might be a bit too much to tackle in a day.
Amenities. Plenty of parking, a dumpster and a info kiosk down the trail are all this course has, make sure you're prepared before heading out there.
Variety. Though many of the holes are open, the variety of boulders, trees, canyon walls, and trees come are used to create a variety of challenging holes. 36 holes, not one seems like another and each one is just perfect for this course. From short and technical to long and wide open.
Secluded. I saw a few other people walking their dogs and exploring this beautiful scenic area. But they never impeded on my game. I often felt that I was by myself on a great journey through the canyons.
Scenic. Beautiful, assuming you're not attached to the lush green scenery of the typical forested courses.
Baskets. 36 of them, in good condition.
Awe Factor. I said bring a camera, several times along the way I found myself pausing to sit and enjoy the view, as you're working up the side of the cliff the view just keeps getting better. Then of course there's the 2 holes 18, it looks like an awesome place to empty the bag but finding the first disc is challenging enough.
Cons:
Wears on plastic. The rough terrain and rocks will chew up discs, especially base line plastic, plan accordingly.
Tee. For a rough secluded course, this is about what I expect. Most teepads do the job, some are pretty rough, and a couple have broken ankle written all over them.
Navigation. Get a map, study it, pay close attention, spend plenty of time walking around looking for the next tee, prepare to get lost. With some detective work I was able to find all of the holes. Or ideally, get a guide, personally I waited for an hour or so, not many other "Folfers" out there (and before you slam me for the term, you must realize that this is the sport they play in Montana, took me a while to get used to hearing "Folf").
Losing plastic. Lots of nooks and crannies for discs to hide, a spotter might be useful, playing by myself was tough, several places had me looking for my discs for a long time, even though they were right in the "open."
Not for the faint of heart. If you're out of shape, the steep climbs and rough terrain may make this course less than ideal.
Not many other courses nearby.
Not for beginners. The holes in the lower part of the canyon could be a great place to practice and learn the game, but the holes along the rim offer plenty of chances to turn a disc off into oblivion. Personally I had what I thought was a "perfect" shot on the blind basket 15 along the left side, all I can determine is that it rolled off the cliff, never to be seen again.
Other Thoughts:
This course isn't necessarily on my top 10 list of favorite courses for design/challenge reasons. But on my list of phenomenal courses that one should experience in life, this is number 1. If you're ever presented with the opportunity to play this course, don't pass it up.