Moosehouse is a rocking .6-mile advanced descent from John's 99 to Gravedigger. This trail is an oldschool-style freeride trail with drops, sharp berms, and super steep, loamy terrain. It's not for the faint of heart, but it's a blast if you can hack it!
Park City
http://www.singletracks.com/item.php?c=1&i=7556