Lakes in Nemaha County, Kansas      Nemaha County State Lake        ...camping/RV facility on the old site. Seneca Golf Club is closed. The new 18-hole course, across the highway, is Spring C... Sabetha City Lake OTHER COUNTIES NEARBY Atchison County Brown County Doniphan County Douglas County Jackson County Jefferson County Johnson County Leavenworth County Marshall County Morris County Pottawatomie County Riley County Shawnee County Wabaunsee County Atchison County Holt County Nodaway County Gage County Johnson County Nemaha County Pawnee County Richardson County Kansas Lakes   Nemaha County State Lake        Fort Markley is no more. There is now a camping/RV facility on the old site. Seneca Golf Club is closed. The new 18-hole course, across the highway, is Spring Creek Golf Course. Thank you, Seneca Chamber of Commerce....