The Huron Tract Purchase also known as the Huron Block, registered as Crown Treaty Number 29, is a large area of land in southwestern Ontario bordering on Lake Huron to the west and Lake Erie to the east. The area spans the counties of Huron, Perth, Middlesex and present day Lambton County, Ontario in the Province of Ontario.The Huron Tract was purchased by the Canada Company, an agent of the British government, to be distributed to colonial settlers of Upper Canada.