Beginning at the southwest corner of township one hundred thirty-seven north, range seventy-four 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 seventy west; thence north along the line between ranges sixty-nine and seventy west to the northeast corner of township one hundred forty north, range seventy west, a point on the tenth standard parallel; thence west along the tenth standard parallel to the southeast corner of township one hundred forty-one north, range seventy west; thence continuing north along the line between ranges sixty-nine and seventy west to the northeast corner of township one hundred forty-four north, range seventy west, a point on the eleventh standard parallel; thence west along the eleventh standard parallel to the northwest corner of township one hundred forty-four north, range seventy-four west; thence south along the line between ranges seventy-four and seventy-five west to the southwest corner of township one hundred forty-one north, range seventy-four west, a point on the tenth standard parallel; thence east along the tenth standard parallel to the northwest corner of township one hundred forty north, range seventy-four west; thence continuing south along the line between ranges seventy-four and seventy-five west to the point of beginning.