The county of Greeley is bounded as follows: Commencing at the intersection of the east line of range thirty-nine west with the third standard parallel; thence south along said range line, to where it intersects the fourth standard parallel; thence west along said fourth standard parallel, to the west boundary line of the state of Kansas; thence north along the west boundary line of the state of Kansas, to where it is intersected by the third standard parallel; thence east, to place of beginning.