Label on verso: "foto Stedelijk Museum Amsterdam." Date based on the year that Broken circle was created. Photo shows a freshly-dug trench filled with water.
Broken circle by Robert Smithson, 1971? / Amsterdam (Netherlands). Stedelijk Museum, photographer. Robert Smithson and Nancy Holt papers, 1905-1987, bulk 1952-1987. Archives of American Art, Smithsonian Institution.
Current copyright status is undetermined
Archives of American Art, Smithsonian Institution Washington, D.C. 20560