Doniphan County, Kansas
The only major highway in the county is U.S. Highway 36, an east/west route going through St. Joseph.  Troy, Elwood, and Wathena lie along this route. Kansas state highways K-7, K-20, K-120, K-136, K-137, and K-238 serve other areas of the county.  K-7 has been designated a scenic byway.