A Sustainable Communities Symposium in Crested Butte, Colo., Sept. 22-24, features keynote speaker Randy Udall of the Community Office of Resource Efficiency, workshops on building materials and tours of energy-efficient businesses. For more information on the $50 event, call the High Country Citizens' Alliance at 970/349-7104 or e-mail hcca@csn.net or visit www.sni.net/hcca.