Nebraska Revised Statutes Chapter 22. Counties § 22-166. Otoe

The county of Otoe is bounded as follows: Commencing at the southwest corner of township seven, north, range nine, east;  thence east to the middle of the main channel of the Missouri River as established by the original government survey of 1857;  thence up said channel until it intersects the southern boundary of the State of Iowa;  thence continuing north along the eastern boundary line of the State of Nebraska as established by the Iowa-Nebraska Boundary Compact of 1943 until said boundary line intersects the dividing line between townships nine and ten;  thence west to the northwest corner of township nine, north, range nine, east;  and thence south to the place of beginning.