Missouri State Route 91 is a short north-south highway in Southern Bollinger County. It runs from Missouri State Route 51, near Dongola, to the Bollinger/Stoddard County Line. MO St Rt 91 does not pass through any towns in Bollinger County. MO St Rt 91 is not multi-plexed in Bollinger County. MO St Rt 91 intersects the following highways in Bollinger County. Missouri State Route 51, near Dongola.
The western end of MO St Rt 91 near Dongola. The western end marker. A junction marker on SB MO St Rt 51. EB MO St Rt 91 south of MO Sec St Rt T. EB MO St Rt 91 south of the Castor River.
