Aspen Snowmass allows uphilling at its ski areas. Please keep in mind that uphilling is a privilege and not a right. Our rules are put in place to minimize conflicts between uphill and downhill traffic on the slopes and maximize everyone’s safety and enjoyment.

Please be aware that no ski area services, including Ski Patrol, are available during hours that the ski areas are not open for business. Please call 911 in the event of an emergency during non-operational hours. You are responsible for your own safety at all times while on Aspen Skiing Company property.

Uphilling Rules for Buttermilk

• Uphilling is allowed during operational hours at Buttermilk.
• Please follow all designated routes (see below), which are marked with orange disks on the side of the trail.
• Uphillers must remain visible at all times.
• Uphillers must stay on the side of the trail and single file.
• Uphillers must be aware of downhill traffic and avoid blind spots.
• Uphillers must be aware that the slopes are in use 24 hours a day, and to be on guard for snowmobiles, snowcats and other vehicular traffic operated by Aspen/Snowmass.
• Uphillers must stay away from all snowmaking equipment and may not cross snowmaking lines at any time.
• All uphillers must have a valid lift ticket or pass to ride up any lifts.
• Uphill traffic may be restricted due ski area construction and maintenance activities.
• As with downhill traffic, uphill traffic must obey all on-mountain signage, including closed runs and ropelines.
• Dogs are prohibited between 7:45 AM - 4:45 PM at Buttermilk during the ski season. After hours, you may bring your dog on-mountain with you.
• The main route is closed during Winter X Games.

Respecting these rules preserves this privilege. Failure to follow these rules could result in the loss of skiing and riding privileges.

Designated routes: On the main mountain, the route follows the orange disks up Columbine from the base, snakes back in the woods and then crosses Midway Avenue to Ridge Trail to the top.The Tiehack route goes up Eagle Hill to Ptarmigan, for the most part on skier’s left.

Buttermilk Trail Map rich-text