What you need to know about uphill skiing in Colorado this season

When it comes to uphill skiing at Colorado resorts this winter, there will be a dizzying array of differences regarding prices and policies. Most require you to buy an uphill season pass for a nominal fee, but uphilling is free at all five Vail Resorts properties in the state (Vail, Beaver Creek, Breckenridge, Keystone and Crested Butte).