This massive sculptures, which mostly consist of slightly curved plates of steel, tower vertically over the viewer or extend horizontally along the flat landscape, such as in Twain, located on a square patch of grass in downtown St. Louis. Commissioned specifically for the square-block site, Twain resembles a peripheral fence that, when viewed from above, takes the shape of a skewed triangle. The piece is composed of eight plates of weathering Cor-ten steel; seven of the plates are 40 feet long.