I guess you could call it "all mountain" but the park rat in me finds a way to make almost anything and everything into a natural park. I don't think I've been able to make it down the mountain without finding something to jump off of. Big mountain has helped me ski better in park just about as much as skiing park has helped me in big mountain. I usually try to split my day or ski per the conditions, or where I ended up for the day. If I'm up at Boreal, I came with the knowledge that it's a park only day, end of story. If I'm at Squaw I'll split my day and try to play around with a bit of everything but if it's a fresh powder or even good leftover day, forget about it, big mountain all the way.
But even in an "all mountain" situation, I can't help myself, wind lips, cat tracks, tree stumps, fallen logs, ruts, anything is fair game.
You know what, chalk me up as 50/50, I'll turn anything into a jump...