i recently heard something on hood's summer park, so i might confuse this with that, but whatevs.
I think there are only like 3 or 4 rails, 2 or 3 boxes and some booters that are pretty small.
I found that on the website, www.whistlerblackcomb.com
in the summer activities part. I dunno if it's up yet (that part of the site), but when you're about to go it'll be up there.