Missouri Secondary State Route D is a north-south highway along old U.S. Rt. 63 in La Plata. MO Sec St Rt D passes through the following town in Macon County. La Plata
MO Sec St Rt D is not multi-plexed in Macon County. MO Sec St Rt D intersects the following highways in Macon County. U.S. Rt. 63, at La Plata.
