The county of Pawnee is bounded as follows: Commencing at a point where the north line of township twenty south intersects the east line of range twenty-one west; thence east along the north line of township twenty, to the east line of range sixteen west; thence south along the east line of range sixteen west, to the fourth standard parallel; thence east along said fourth standard parallel, to the east line of range fifteen west; thence south along the east line of range fifteen west, to the north line of township twenty-four south; thence west along the north line of township twenty-four south, to the east line of range nineteen west; thence north along said east line of range nineteen west, to the north line of township twenty-three south; thence west along the north line of township twenty-three south, to the east line of range twenty-one west; thence north along said east line of range twenty-one west, to the place of beginning.