A green belt or greenbelt is an area of largely undeveloped wild or agricultural land surrounding or neighbouring an urban area.
The protection of green belts was pioneered in the United Kingdom, where there are fourteen green belt areas, covering 16,716 km², or 13% of England, and 164 km² in Scotland; for a detailed discussion of these, see Green Belt (UK).
Another notable example is the OttawaGreenbelt in Canada.
Ottawa is situated on a bluff above the Ottawa River, and both the Rideau River and the Rideau Canal flow through the city.
Ottawa covers a land area of 110 sq km (43 sq mi) and is surrounded by a 17,000-hectare (42,000-acre) protected greenbelt to the south and west.
Ottawa is well connected by road and rail to the major transportation routes that span central and eastern Canada, and further improvements to the highway system are being constructed.