In celebration of the 40th anniversary of Nancy Holt’s sculpture Time Span at Laguna Gloria, this screening presents a selection of short films created by Nancy Holt and in collaboration with artist Robert Smithson: "Swamp" (1971), "Sun Tunnels" (1978), and "The Making of Amarillo Ramp" (1973/2013). Presented by Austin Film Society in partnership with the Contemporary Austin and Holt/Smithson Foundation.