Here's another hardcore American artist that I find not too many people know about. Associated at first with the performance and body/endurance crowd of the 70's, he soon after moved towards sculpture (what he actually studied) perhaps giving his own-body-as-the-medium a break. Here above is a good sampling of his work. See more here and read about him here.
From top to bottom: Unpainted Sculpture (1997); Oh! Charlie, Charlie, Charlie (1992); Plank Piece I & II (1973); Untitled (1973).
