As single-day lift-ticket prices have skyrocketed astronomically across Colorado, multi-mountain season-pass prices have actually stayed pretty much the same. That's good news for locals committed to getting up to the hills for more than a couple of days, especially since those passes increasingly offer days at national and international resorts. For the 2014-2015 season, Vail Resorts' $579 Epic Local pass offered unlimited access to Keystone, Breckenridge and Arapahoe Basin locally, as well as Afton Alps in Minnesota and Mount Brighton in Michigan — plus, crucially, ten restricted days at Vail and Beaver Creek, and restricted days at Heavenly, Northstar and Kirkwood in Tahoe and — new this year — Park City in Utah. Planning your adventures during peak-season dates around the holidays? Splurge on the extra $200 for unlimited access to all of the above and some bonus days at a handful of international resorts.