In 1974, the Iowa General Assembly determined that one-half of one percent of the total cost for both the Hoover and Wallace office buildings would be set aside for artwork to decorate the structures. As part of this program, the National Endowment for the Arts and the state shared the costs for this 1979 monument to the west of the Hoover Building. The $14,000 piece is the work of Iowa City artist Luther Utterback. Five limestone blocks and a Japanese ginko tree are incorporated into the 116-ton work.
Four limestone blocks are arranged above the ground and the fifth stone, a 16-ton block of choice limestone, is buried six feet below the ground. Mr. Utterback, who did no polishing or finishing of the stones, commented, "The piece was produced by the earth.