“Yard was originally made in the sculpture garden of the Martha Jackson Gallery in New York. It consisted of hundreds of used tires covering the ground in no particular order. Five tarpaper mounds emerged from the tires …. (The tarpaper actually covered Mrs. Jackson’s sculpture collection, which couldn’t be moved!). Visitors were encouraged to walk on the tires, and to throw them around as they pleased.
Since 1961, the work … has been remade seven or eight times in Europe and America; and on each occasion it was changed, more or less greatly, to fit the particular spaces and contexts.”