Beginning at the southwest corner of township one hundred forty-one north, range ninety-seven west of the fifth principal meridian, a point on the tenth standard parallel; thence east along the tenth standard parallel to the southeast corner of township one hundred forty-one north, range ninety-four west; thence north along the line between ranges ninety-three and ninety-four west to the northeast corner of section twenty-five, township one hundred forty-one north, range ninety-four west; thence east along a line parallel to and two miles [3.22 kilometers] distant in a northerly direction from the tenth standard parallel to the southeast corner of section twenty-four, township one hundred forty-one north, range ninety-one west; thence north along the line between ranges ninety and ninety-one west to the northeast corner of township one hundred forty-four north, range ninety-one west, a point on the eleventh standard parallel; thence west along the eleventh standard parallel to the southeast corner of township one hundred forty-five north, range ninety-one west; thence continuing north along the range line between ranges ninety and ninety-one west to the main channel of the Missouri River; thence in a northwesterly direction along the main channel of the Missouri River to the intersection of the main channel of the Missouri River with the line between ranges ninety-three and ninety-four west; thence south along the line between ranges ninety-three and ninety-four west to the southwest corner of township one hundred forty-nine north, range ninety-three west, a point on the twelfth standard parallel; thence west along the twelfth standard parallel to the northwest corner of township one hundred forty-eight north, range ninety-seven west; thence south along the line between ranges ninety-seven and ninety-eight west to the southwest corner of township one hundred forty-five north, range ninety-seven west, a point on the eleventh standard parallel; thence east along the eleventh standard parallel to the northwest corner of township one hundred forty-four north, range ninety-seven west; thence continuing south along the line between ranges ninety-seven and ninety-eight west to the point of beginning.