In 1966, Boulder was attracting some of the nation's first hippies, many of whom were enrolling in fine-art classes at the University of Colorado. Student studios were then in the Armory, and a group coalesced there, including members Dale Chisman, Clark Richert, John De Andrea, Margaret Neumann and George Woodman. Those hippie-artists went on to write many chapters in Colorado's aesthetic history, including founding Drop City, the artist commune near Trinidad; launching CrissCross, which published a magazine; and opening two co-ops, Boulder's Edge Gallery and Spark Gallery in Denver. The Armory Group was one of the season's best shows, and all Singer director Simon Zalkind had to do was to bring the old crowd back together.