The Dia Foundation is discussing whether to restore Robert Smithson’s Spiral Jetty in Utah’s Great Salt Lake. The work is Smithson’s masterpiece, but as the lake has receded, it has exposed the earthwork to environmental damage. “To ensure that “Spiral Jetty” is accessible to future generations, Dia, which exhibits and preserves art made since the 1960’s, has discussed raising it by adding more rocks. Dia is also studying whether nature will restore the contrast the “Jetty” originally had with its surroundings by dissolving some of the salt crystals when the lake’s waters rise, or whether the foundation needs to do something more.”