Site preparation for the 16,000-pound sculpture took about two months 
          and included the grading and leveling of the site, the construction 
          of a supporting structural pad of concrete covered with decomposed granite, 
          and the landscaping of the area with trees and shrubs. Materials for 
          the sculptureScottish windfallen branches for the exterior and 
          California eucalyptus logs for the interiorwere delivered before 
          the artist arrived on campus.