Mary Corse working in downtown Los Angeles in 1966. Courtesy of and © Mary Corse

Billy Al Bengston’s studio on Mildred Street in Venice, California, 1970. Image courtesy of and © Billy Al Bengston

Ed Moses and Frank Gehry in Greece, 1975. Image courtesy of Ed Moses and Frank Gehry

Craig Kauffman in Billy Al Bengston's studio in the 1960s. Image courtesy of and © Billy Al Bengston

Frederick Eversley polishing one of his sculptures, 1970. Image courtesy of and © Frederick Eversley

Frederick Eversley in his studio, 1971. Photo by Frank J. Thomas. Courtesy of the artist and the Frank J. Thomas Archives

An exhibition at Billy Al Bengston’s Artist Studio, with works by Ed Ruscha, Peter Alexander, and John McCracken, 1970. Image courtesy of Billy Al Bengston

Norman Zammitt working in his studio in Pasadena, California, 1976. Image courtesy of and © Norman Zammitt Estate

Norman Zammitt's painting materials in his studio in Pasadena, California, 1978. Image courtesy of and © Norman Zammitt Estate

John McCracken in his studio in Costa Mesa, California, in the mid-1960s. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives

Robert Irwin, ca. 1967. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives

Larry Bell, Billy Al Bengston, and Ken Price outside Hotel Caesars in Tijuana, Mexico, 1968. Image courtesy of Larry Bell

Exterior view of Larry Bell's studio on Market Street in Venice, California, ca. 1970. Image courtesy of and © Larry Bell

Installation view of Craig Kauffman's solo exhibition at the Pasadena Art Museum, including works from Kauffman's Loops series, 1970. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives

Bruce Nauman in his studio in Pasadena, California, ca. 1970. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives