For the 2009-2010 season at Aspen Snowmass, buy four, get 5 on lift tickets, lodging and equipment rental through Four Mountain Sports and D & E. Packages for 02/10- 3/25 2010 must be booked by 01/15/2010. Packages for 03/26-04/04 2010 must be booked by 02/15/2010.