Robert Smithson (January 2, 1938 – July 20, 1973) was an American artist famous for his land art.
The Making of Amarillo Ramp
2013 · as Himself
Breaking Ground: Broken Circle/Spiral Hill
2011 · as Voice of
Utah Sequences
1970 · as Self
Mono Lake
2004 · as Himself
Bob with Books
1971 · as Himself
