Kan. Stat. § 18-1,105
The county of Wyandotte is bounded as follows: Commencing at a point on the west line of the state of Missouri, opposite the mouth of the Kansas river; thence south on the west boundary line of the state of Missouri, to the south line of township eleven south, being the northeast corner of Johnson county; thence west on township line, to the middle of the main channel of the Kansas river, in range twenty-four east; thence up the said river, in the middle of the main channel thereof, to the intersection with the east line of range twenty-two east; thence north on said range line, to the old Delaware reservation lines, the same being the dividing line between the original Delaware reserve and Delaware trust lands; thence east on said line, to the west boundary line of the state of Missouri; thence southeasterly with the said western boundary line of the state of Missouri, to the place of beginning.
K.S.A. 18-1,105