The Otoe Reservation was a twenty-four square-mile section straddling the Kansas-Nebraska state line. The majority of the reservation sat in modern-day southeast Jefferson County, Nebraska. As early as 1834, the Oto relinquished land to the government in fulfillment of a treaty. It extended two miles (3 km) south of the state line its full length, into Washington and Marshall counties, Kansas. In Nebraska it extended into Jefferson County, which was earlier called Jones County, and Gage County. Altogether it comprised 250 sections totaling 160,000 acres (650 km2). The Glenwood, Paddock, Liberty Township and Barneston Townships are wholly within the historic boundaries of the reservation. It also included sections of the Elm, Sicily, Wymore, and Island Grove Townships.