The sixties were a time of sexual liberation and rapidly evolving fashion, when skirts became short, then long, and then short again. Then the seventies happened and skirts became pants. But, during that time of mind-expansion and boundary-exploring, America was graced by some of the most beautiful women of all-time. From Michelle Philips to Pattie Boyd, hippies weren't only groovy, they were gorgeous. Here are seven of our favorites.
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