Dennis Oppenheim
[Artist, b. 1938, Electric City, Washington, d. 2011, New York.]
You can’t understand how strange it was to be a sculptor who exhibited photographs.
(On exhibitions of his “earthworks” and land art pieces.) 
[The photographs] were there simply to indicate a radical art that had already vanished. The photograph was necessary only as a residue for communication.
The photograph gives constant reference to the rectangle. This forces any idea into the confines of pictorial illusionism.
Photographs represented the work [and] everything closed down into a pictorial configuration.
(On exhibitions of his “earthworks” and land art pieces.)
