Beginning at the southwest corner of township one hundred thirty-seven north, range sixty-one west of the fifth principal meridian, a point on the ninth standard parallel; thence east along the ninth standard parallel to the southeast corner of township one hundred thirty-seven north, range fifty-six west; thence north along the line between ranges fifty-five and fifty-six to the tenth standard parallel; thence west along the tenth standard parallel to the southeast corner of township one hundred forty-one north, range fifty-six west; thence continuing north along the line between ranges fifty-five and fifty-six west to the northeast corner of township one hundred forty-three north, range fifty-six west; thence west along the line between townships one hundred forty-three and one hundred forty-four north to the northwest corner of township one hundred forty-three north, range sixty-one west; thence south along the line between ranges sixty-one and sixty-two west to the tenth standard parallel; thence east along the tenth standard parallel to the northwest corner of township one hundred forty north, range sixty-one west; thence continuing south along the line between ranges sixty-one and sixty-two west to the point of beginning.