Beginning at the southwest corner of township one hundred twenty-nine north, range fifty-eight west of the fifth principal meridian, a point on the seventh standard parallel; thence east along the seventh standard parallel to the line between ranges fifty-two and fifty-three west; thence north along the line between ranges fifty-two and fifty-three west to the north boundary line of the original Sisseton and Wahpeton Indian Reservation, now known as Lake Traverse Lands; thence northwesterly along the said boundary line to the line between ranges fifty-two and fifty-three west; thence continuing north along the line between ranges fifty-two and fifty-three west to the northeast corner of township one hundred thirty-two north, range fifty-three west, a point on the eighth standard parallel; thence west along the eighth standard parallel to the northwest corner of township one hundred thirty-two north, range fifty-eight west; thence south along the line between ranges fifty-eight and fifty-nine west to the point of beginning.