Beginning at the southeast corner of section twenty-five, township twenty-eight of range twenty; running thence west with the legal subdivisions to the southwest corner of section thirty, township twenty-eight of range twenty-four, on range line dividing ranges twenty-four and twenty-five; thence north with said range line to the northwest corner of section eighteen, township thirty-one, range twenty-four; thence east with the subdivisional lines to the range line dividing ranges nineteen and twenty; thence south with said range line to the place of beginning.