Treaty 29, or the Huron Tract Purchase, was signed on July 10th, 1827, by representatives of the Crown and certain Anishinaabe peoples. The territory described in the written treaty covers approximately 2,200,000 acres. Treaties often reference natural features of the landscape to mark boundaries. This treaty uses the intersection of the St. Clair River and “a hickory tree marked with a broad arrow on two sides” to mark part of its boundary. Current communities in the area include Sarnia and Stratford.