Aspen Center for Environmental Studies (ACES)
Hallam Lake / Rock Bottom Ranch
One of Aspen’s most beloved local institutions, ACES offers up several ways for visitors to engage with nature and learn about the precious Rocky Mountain ecosystems that surround us. Stop by their 25-acre preserve at Hallam Lake where you can view an indoor trout stream and meet a golden eagle, or visit their Rock Bottom Ranch facility for a farmyard tour. ACES also offers snowshoe naturalist tours on Snowmass Mountain everyday.