Neb. Rev. Stat. §§ 22-187
The county of Thurston is bounded as follows: Commencing at a point where the west boundary of the Omaha Indian reservation intersects the south line of section thirty-four, township twenty-five, north, range five, east of the sixth principal meridian; thence east to the northeast corner of township twenty-four, north, range seven, east; thence south to the south line of the Omaha Indian reservation as originally surveyed; thence east along said line to the line between sections thirty-two and thirty-three, township twenty-four, north, range ten, east; thence north to the northwest corner of section twenty-one, township twenty-four, north, range ten, east; thence east to the eastern boundary line of the State of Nebraska as established by the Iowa-Nebraska Boundary Compact of 1943; thence in a northwesterly direction along said boundary line to its intersection with the north line of the Winnebago Indian reservation, in township twenty-seven, north, range ten, east; thence west along the north line of said reservation to an intersection with the line between sections thirty-three and thirty-four, township twenty-seven, north, range six, east; thence south to the southwest corner of section thirty-four, township twenty-seven, north, range six, east; thence west to the west boundary of said Winnebago Indian reservation; and thence south along the west line of the Winnebago and Omaha Indian reservations to the place of beginning.
Neb. Rev. Stat. §§ 22-187