Announced just last week this is a great package. While Vail Resorts has the Colorado and California resorts this pass covers Colorado, California, Utah, and Wyoming:
The Mountain Collective™ is an unprecedented collaboration between the world’s four best independent resorts: Alta, Aspen/Snowmass, Jackson Hole and Squaw Valley/Alpine Meadows. With free days and huge discounts, The Mountain Collective™ members can claim limitless vertical feet and chase ideal conditions across Colorado, Utah, Wyoming and California. The Mountain Collective™ is available for just $349 for adults and $229 for children when purchased before November 19, 2012.