We participated in the weekly Ski with a Ranger day last weekend. Here is the snippet fromthe Beaver Creek site:

Guests of all ages are invited to join one of our Forest Service Rangers on a 45 minute guided tour of beginner and intermediate terrain.

The trails featured during the tour will vary by week and ability of the group and will include a brief introduction and orientation at the Environmental Learning Center.

Topics included in the tour include:
Winter Wildlife Adaptations (What do they do to survive?)
Lifecycle of the Mountain Pine Beetle
Local History: From the Native tribes to today's communities
Avalanche Awareness (Behind the scenes with Beaver Creek Ski Patrol)
Fire's Role in Nature with special guest Smokey the Bear

Tours depart from the Environmental Learning Center at the top of Cinch Express chairlift (#8). Participants must have a valid lift ticket.