My wife and I are going skiing at Keystone, CO for Christmas while searching for deals I found this site http://www.rockymountainblue.com/libertypass.htm. I haven't actually purchased the pass yet, but it seems legit. A 4 of 6 days pass that I would purchase would cost me $229/person that time of year, so it's a pretty sweet deal. It'll save us $140 and the site has a number to call for lodging and activity deals as well. I haven't checked that out yet. Hope somebody finds this useful.