In my further study of Charles Haertling’s work in and around Boulder, I have looked into his background and tried to understand the architectural and historical context within which he was working. A number of years ago, Marcy Cameron and I put together a talk that attempted to describe the social landscape in Boulder in the post-WWII era and what made it such furtile ground for the blossoming of innovative residential architecture that was built in the late 1950s through the early 1970s.