In 1850, William Robinson negotiated two treaties with the Aboriginal inhabitants, mainly Ojibwa, of the northern Great Lakes region.
One treaty covered the area of the north shore of Lake Superior (Robinson-Superior Treaty), while the other covered the Lake Huron and Georgian Bay areas (Robinson-Huron Treaty).
These two treaties are quite different from those negotiated in the southern part of the province as the Robinson treaties promised the creation of reserves, annuities and the continued right to hunt and fish on unoccupied lands.
During the spring of 1850, Robinson made an exploratory trip through the proposed surrender lands around Lakes Huron and Superior. Robinson returned to the upper lakes in late August 1850 to negotiate a treaty.