Better yet hang out at Green Lake and become a Green Lake commando like me. Theres abunch of good downhill trails you have to ask people were thier at. The map dosn't have some of them. Straight down the mountian is a good one. These are for men only not little boys.
Every route down is a blast.
When there's no snow, that is. If your brave, try the World Cup course. The coures that Shaums broke his neck on in '98. It kicks ass. There is some great xc aswell.