Dennis Oppenheim (1938 to 2011) was an American conceptual artist, performance artist, earth artist, sculptor and photographer. From 1966 to 1968, Oppenheim’s ephemeral earthworks included shapes cut in ice and snow, such as Annual Rings (1968), a series of rings carved in the snow on the United States/Canada border and Gallery Transplant (1969), in which he cut the outline of a gallery in the snow. Oppenheim was included with Michael Heizer, Robert Smithson and Walter De Maria in the important 1968 Earth Works exhibition at the Dwan Gallery in New York and in the 1969 Earth Art exhibition curated by Willoughby Sharp at the Andrew Dickson White Museum of Art, Cornell University, Ithaca, New York.
