Summer & Fall Programs

Explore Aspen with ACES! From June until September, ACES offers a variety of things to do for all ages at spectacular locations around Aspen. Join an ACES Naturalist guide for free daily hikes, which explore popular local spots like Aspen and Snowmass mountains, the Maroon Bells and Snowmass' Ice Age dig.

Looking for a longer adventure in the Aspen area? Our popular Green World Day Hike and River Run Sunset Hike are both a must-do Aspen activity. Offered daily by reservation, the tours include the Ashcroft Ghost Town and lunch or dinner at the Pine Creek Cookhouse!

If you have a particular hike in mind our Hire a Guide program offers many options for private, custom hikes and tours with certified interpretive Naturalist that are first-aid trained guides.

Register for ACES Naturalist Field School offering a variety of fun and educational adult classes and kids' camps that guarantee an exciting summer of outdoor exploration for all ages. 

Don’t forget to check out ACES at Hallam Lake, a 25 acre nature preserve in the heart of Aspen featuring programs such as Family Saturdays, Eagles, Hawks, and Owls, Sunset Beaver Walks, and Yoga in Nature. Visit ACES at Rock Bottom Ranch between Basalt and Carbondale, offering daily Farm Tours at 11AM and monthly Farm to Table events. Be sure to stock up on RBR chicken, pork, lamb, eggs, vegetables and more, available for sale on-site and in local farmers markets. Stop in to ACES at the Catto Center at Toklat, across from the Ashcroft Ghost Town up the Castle Creek Valley to check out the hand-woven Oaxacan rugs made by Artist in Residence, Elena Gonzalez. Purchase a rug and a portion of the proceeds support ACES' scholarship program.

There is always something to do at ACES, including a variety of community events, and our staff is available at all sites to answer questions and show you around.

Click on the programs in the menu on the left for more information when in season.