The Greenbelt is a 203.5-square-kilometre protected green belt traversing Ottawa, Ontario, Canada. It includes green space, forests, farms, and wetlands from Shirleys Bay in the west and to Green's Creek in the east. It is the largest publicly owned green belt in the world and the most ecologically diverse area in Eastern Ontario. The National Capital Commission owns and manages 149.5 square kilometres, and the rest is held by other federal government departments and private interests.