The Aamjiwnaang First Nation (formerly known as Chippewas of Sarnia First Nation) is an Anishinaabe (Ojibwe) First Nations Band located on reserve land by the St. Clair River, three miles south of the southern tip of Lake Huron. The reserve is located across from the United States border from Port Huron, Michigan, and is a result of treaties that were negotiated with the Crown in the 1820s. There are approximately 2,000 band members with about 850 living on the reserve. Their heritage language is Ojibwe.