Lower Mississippi River Mile Marker Map

The Lower Mississippi River is the portion of the Mississippi River downstream of Cairo, Illinois. From the confluence of the Ohio River and the Middle Mississippi River at Cairo, the Lower flows just under 1000 miles to the Gulf of Mexico. It is the most heavily travelled component of the Mississippi River System.
  • Country: US
  • Length: 990 mi (1,600 km)
Data from: en.wikipedia.org