Treaty of August 11, 1827
On August 11, 1827, a treaty was established at Butte des Morts between U.S. Commissioners Lewis Cass and Thomas L. McKenney and the Chippewa, Menomonie, and Winebago tribes. This treaty aimed to define the southern boundaries of the Chippewa territory, resolve disputes involving New York tribes, and delineate jurisdiction over contested lands. It included provisions for education funding and addressed recent conflicts. Ratified by the President and Senate, the treaty emphasized that it would not affect the rights of the New York Indian tribes to their lands.