Hallam Lake Nature Preserve 
100 Puppy Smith St.
Aspen, CO 81611
970-925.5756
http://www.aspennature.org/locations/hallam-lake/about
Nature Center: Nature Education, Walk
The Hallam Lake Nature Preserve and Learning Center are places to discover and study natural communities. The preserve has been permanently set aside to protect plants and animals native to the Aspen area.