Jonathan Spath Bailey Berkshires, MA 2006
Jonathan Spath Open Perimeter Halibut Point State Park, MA 2008
Jonathan Spath Freedom to the Nth Degree Halibut Point State Park, MA 2008
Jonathan Spath Inscribed Halibut Point State Park, MA 2008
Jonathan Spath Curvature Halibut Point State Park, MA 2008