Missouri Secondary State Route M is a short east-west highway in East-Central Lincoln County. It runs from Missouri State Route 79, near Elsberry, east toward the Mississippi River. MO Sec St Rt MM does not pass through any towns in Lincoln County. MO Sec St Rt MM is not multi-plexed in Lincoln County. MO Sec St Rt MM intersects the following highway in Lincoln COunty. Missouri State Route 79, near Elsberry.
