Kan. Stat. § 18-116
The county of Coffey is bounded as follows: Commencing at a point three miles north of the southwest corner of Franklin county; thence west with the south boundary of Osage county, to the southwest corner thereof; thence south with the section lines dividing the second and third tiers of sections of range thirteen, to a point forty rods north of the one fourth corner on the west line of section fourteen, township twenty, range thirteen; thence east parallel to the east-and-west middle line of said section, to the middle of the Neosho river; thence down the middle of said river, passing through the middle of a stone pier now standing in the middle of the Neosho river and following thence down the middle of the Neosho river, to a point twenty rods south of the east-and-west middle line of said section; thence west parallel to the east-and-west middle line of said section, to the west line of said section fourteen; thence south with the section line, to the corner of sections fourteen, fifteen, twenty-two and twenty-three of township twenty-three south, of range thirteen east; thence east with the section lines, to the northwest corner of Allen county; thence north with the west boundary of Anderson county, to the place of beginning.
K.S.A. 18-116