You can get a night ski pass for $169 for all 3 resorts mentioned above if you have a group of 15 people or more buying them. Night skiing is after 4 pm on Weekdays & Saturday and after 3 on Sunday - it goes on till 10 pm.

here's a link to someone that is trying to get a group together:
http://www.facebook.com/group.php?gi...3271879&v=info