Missouri State Route 139 is a north-south highway in Western Linn County. It runs from the Chariton/Linn County Line, near Fountain Grove, to the Linn/Sullivan County Line, near Browning. MO St Rt 139 passes through the following town in Linn County. Meadsville
MO St Rt 139 is multi-plexed in Linn County. U.S. Rt. 36, from Laclede to Meadville.
Missouri Secondary State Route Y, at Meadville. Missouri Secondary State Route B, near Linneus. Missouri Secondary State Route DD, near Browning. Missouri Secondary State Route E, near Browning. Missouri Seocndary State Route MM, near Browning.
A junction marker on EB U.S. Rt. 36. EB U.S. Rt. 36/SB MO St Rt 139 east of Meadville. EB U.S. Rt. 36/SB MO St Rt 139 near Laclede. A junction marker on EB U.S. Rt. 36/SB MO St Rt 139. A junction marker on SB MO St Rt 5.