Missouri Secondary State Route F runs east-west in the central portion of Marion County. This runs from U.S. Rt. 24/61 to Missouri Secondary State Route E, south of Palmyra. MO Sec St Rt F does not pass through any towns in Marion County. MO Sec St Rt F is not multi-plexed in Marion County. MO Sec St Rt F intersects the following highways in Marion County. U.S. Rt. 24, near Palmyra. U.S. Rt. 61, near Palmyra.