The border continues through Lake Superior and Whitefish Bay, into the St. Mary's River then the North Channel. At 45°59′N 83°26′W﻿ / ﻿45.983°N 83.433°W﻿ / 45.983; -83.433, the border turns southward into the False Detour Channel, from which it reaches Lake Huron. Through the Lake, the border heads southward until reaching the St. Clair River, leading it to Lake St. Clair.