 The Wahpeton and Sisseton bands ceded their lands in southern and western Minnesota Territory, along with some lands in Iowa and Dakota Territory.In exchange, the United States promised payment of $1,665,000 in cash and annuities.Through the Treaty of Traverse des Sioux and the Treaty of Mendota, the Mdewakanton and Wahpekute bands of the Lower Sioux ceded territory of nearly of land.