Beginning at the point where the boundary line between the states of Montana and North Dakota intersects the eighth standard parallel; thence east along the eighth standard parallel to the southeast corner of township one hundred thirty-three north, range ninety-eight west on the fifth principal meridian; thence north along the line between ranges ninety-seven and ninety-eight west to the northeast corner of township one hundred thirty-six north, range ninety-eight west, a point on the ninth standard parallel; thence west along the ninth standard parallel to the northwest corner of township one hundred thirty-six north, range one hundred four west; thence south along the line between ranges one hundred four and one hundred five west to the northwest corner of township one hundred thirty-five north, range one hundred four west; thence west along the line between townships one hundred thirty-five and one hundred thirty-six north to the intersection of said line with the boundary line between the states of North Dakota and Montana; thence south along the boundary line between the states of North Dakota and Montana to the point of beginning.