- Please support our journalism through affiliate links. Affiliate Disclosure
Review:
Elizabeth Paepcke founded the Aspen Center for Environmental Studies (ACES) in 1968 with the goal of providing a bridge between the Aspen’s urbanized environment and surrounding nature, as well as creating a wildlife sanctuary in Aspen. The Center operates in four locations: Hallam Lake, The Catto Center, Rock Bottom Ranch, and Spring Creek. Today, the Center is a non-profit environmental science organization.
ACES Naturalist guides offer free hikes every day to explore spots like Snowmass Mountains, Snowmass Ice Age dig, and Maroon Bells. The Center offers numerous courses and programs in basic ecology and environmental sciences for adults and school children.
100 Puppy Smith St, Aspen, Colorado, Phone: 970-925-5756
Plan Your Trip
Get Ready to Go!
- Search flights and stays nearby.
- Book your tour or local activity.
- Book your car rental.
Need some more help?
Read our Reservations & Travel Planning Tips guide.