The name of the artist and work is B. Robert Smithson, Spiral Jetty, 1970.
It represents an earthwork sculpture made of mud, salt crystals, and basalt rocks, and in the shape of a spiral. It is 460 meters long, and 4.6 meters wide, but also counterclockwise. It is located on the northeastern shore of the Great Salt Lake in Utah.
1) closely linked to german art 2) form of social protest 3) urban culture
