I’ve skied all of them except for only a few like Trident and Orbit. They take a little more effort and rarely come in enough to make the hike worthwhile. I think the triple diamond designation is fairly recent and most of my skiing there was before that. It definitely is a good call to rate those areas differently due to the high exposure. You can tumble down most of the double blacks like this one
but not the triples without severe consequences. You can tumble down the Big Couloir, as many do, when there is enough snow but early on or when it’s low tide there is a feature affectionately known as the cheese grater that is exposed.
This is looking down from the top of the Big Cooly. You can see someone just above the left ski tip who is not even to the dogleg yet, which is roughly halfway.
Dogleg looking up. Freebird ripping it. A little bit of the cheese grater is poking out.
This is from the dogleg looking down with the A-Zs in the background.
Looking up from Cueball just above the tram. You can get a sense of the size and scale if you can find Freebird.
As Marz pointed out there is an abundance of rocks sometimes hidden just below fresh snow up high and in the bowl. Challenger is known for that. A coworker of mine on her first day in Big Sky pointed it into the untracked, found the rocks and flipped over, chipping a big piece of her hip bone off. They pinned it back on and she stuck it out, healed and was able to finish the season riding again. The rocks are like shark teeth. My understanding is that Big Sky was really one of the first places that embraced wearing helmets outside of ski racing. They are very necessary especially if you are considering skiing these zones.
As far as experience goes Big Sky is a real special place. It has great terrain for all abilities. The peak is iconic and the scenery is breathtaking. The Headwaters hike is one of the most beautiful in America. A lot of my skiing there was before that hike was established. All of the A-Z chutes were hiked from the bowl. Before Moonlight was built Headwaters was poached from Challenger, which added a layer of excitement. It was known as Nashville bowl, Graceland and the Elvis chutes. Most of the terrain is commiting. Lots of billy goating.
Speaking of which, here’s one on Prudential Rock as seen from Lower Pinnacles.
Goat on the left, Freebird upper center right.
Once you get passed the boney cruxes you can open it up. Much of the run outs empty into big bowls and you can pretty much point’em. It’s amazing that they have that much terrain available to the general public without a guide. Some of it requires a transceiver, shovel and partner but a lot of it doesn’t. The patrol there is no joke. They do a great job keeping it safe.
If you make it to Big Sky and want to dip your toe, try Bonecrusher. It’s an often overlooked hike above Swifty with an awesome view to some turns rated single black. Short and sweet.