The Catto Center at Toklat was once the family home of one of ACES’ most influential founders, Stuart Mace, and holds great meaning for the Aspen community. Toklat (an Inuit word meaning "headwaters") was built by Stuart and and his wife Isabel in 1948 as a wilderness lodge and family home. The early dog sledding trips, the pristine sub-alpine environment, and tall tales told around the hearth in the evening drew both locals and visitors from all over the world. In 2004, with the help of long-time ACES supporter Jessica Hobby Catto, ACES bought Toklat to preserve Stuart's legacy and this community touchstone. Toklat is located near the headwaters of Castle Creek in a dramatic landscape and serves as a gathering place for cultural and ecological discourse. Environmental leadership, tempered with the courage of conviction, is a central goal of Toklat programs.