Plumb Line was part of my exhibition entitled Land of Golgotha at Wayne State University, in Detroit, MI. It looked critically at the issue of urban sprawl onto prime farmland in southeastern Michigan. Using the needles of Eastern White Pine, a tree that once covered more than two-thirds of Michigan's Lower Peninsula, I created a 15' diameter circular bed of pine needles that was six inches deep; hanging from the gallery's ceiling as a plumbline into the center of the bed was a deer skull.