The Aspen Center for Environmental Studies (ACES) is a nonprofit organization dedicated to environmental science education. We drive bold innovation in environmental science, sustainable agriculture, forest health, and ecosystem restoration.
ACES is based at three locations in the Roaring Fork Valley: Hallam Lake, Rock Bottom Ranch, and the Catto Center at Toklat. Our mission is to "educate for environmental responsibility" by fostering ecological literacy and building a community of knowledgeable, motivated environmental stewards. ACES' Education, Naturalist, Forest, Sustainable Agriculture, and Community programs focus on fostering ecological literacy and building connections between people and nature.
With support from over 70 partner organizations, ACES programs reach more than 140,000 individuals each year. We teach daily in local schools, lead summer camps, and offer adult classes. We share the beauty and ecology of the area with locals and visitors through naturalist-led hikes and field programs for all ages. We also engage the community by hosting public lectures and events. ACES collaborates with land trusts, public agencies, and other nonprofits to further our mission.
Educating for Environmental Responsibility
In 1969, Elizabeth Paepcke donated her 25-acre property in Aspen's West End to establish an environmental center and preserve. She was inspired by "The Aspen Idea"—the belief in harmony between mind, body, and spirit—and envisioned a space that would provide a bridge to nature for an increasingly urbanized society, while also serving as a sanctuary for wildlife in the heart of Aspen.
Since its founding, ACES has inspired a lifelong commitment to the earth by offering innovative, immersive programming for all ages. Our programs focus on ecological literacy, regenerative agriculture, forest and ecosystem health, land restoration, and environmental leadership. In the next 50 years, ACES aims to cultivate a community of environmental stewards, empowering children, parents, consumers, decision-makers, and leaders to make informed choices in an increasingly complex world.
Organization name
Aspen Center for Environmental Studies
other names
ACES
1968
Tax id (EIN)
23-7042291
Category
Environment
Organization Size
Large Organization
Address
100 Puppy Smith StreetOther
2001 Hooks Spur RoadOther
11247 Castle Creek RoadPitkin County, CO, US
Eagle County, CO, US