Treaty 3 is an agreement entered into on October 3, 1873, by Chief Mikiseesis on behalf of the Ojibwe First Nations and Queen Victoria. The treaty ceded a vast tract of Ojibwe territory, including large parts of what is now northwestern Ontario and a small part of eastern Manitoba, to the Government of Canada. Treaty 3 also provides for rights for the Waasaakode Anishinaabe and other Ojibwe, through a series of agreements signed over the next year. The treaty was modified in 1875 when Nicolas Chatelain negotiated an adhesion that created a reserve, surveyed as reserve 16A, for Métis families connected to Mikiseesis' Rainy Lake Band. Reserve 16A and the Rainy Lake Band reserve were unified in 1967.