Lyon, County is in the fourth tier of counties from Missouri, being in the line of the Great Neosho Valley and nearly at the head waters of that river. The Osage River has its rise in Osage, Wabaunsee and Lyon counties, its branches watering the northeastern sections of the latter district. Eagle, Allen, Dow, Rock, Badger, Plum, Coal and Dry creeks, tributaries of the Neosho River, water thoroughly the central and southern portions of the county, and, to a partial extent, the northwestern.
The Cottonwood River, a branch of the Neosho, flows east through its southern central portion. Elm Creek and One Hundred and Forty-second Creek, tributaries of the Osage, and the north and south branches of the Verdigris River, furnish an abundant water supply to the northeastern and southwestern portions of the county. There is also a good supply of springs, water being obtained for drinking purposes at a depth of from twenty to forty feet.
County Seat: Emporia, Kansas
Date organized:1858
County History:
Cutler's History of the state of Kansas, Lyon County
Historic Landmarks, State, National:
County Historical Society:
Websites about the county:
Documentaries: