30 Below Nancy Holt 1979 Commissioned for the 1980 Winter Olympics, Lake Placid, New York, USA Earthwork & Sculpture
Hydra's Head Nancy Holt 1974 Along the Niagara River, Artpark, Lewiston, New York, USA Earthwork & Sculpture
Sky Mound Nancy Holt 1984— I-A Landfill, Hackensack Meadowlands, New Jersey, USA Earthwork & Sculpture
