The volume of the Mississippi is doubled when this "stately" river flows into it at Cairo, Illinois
[DOC] [TLE] Habitat Needs Assessment for the Upper Mississippi River System [PAR] The upper Mississippi River is divided into 10 geomorphically based ...... of runoff 
volume, and greatly affect flood peak flows in the Mississippi, ..... tree diseases to 
invade North America, killing millions of the stately elm trees ...... and DeMisse 
1989) and the Mississippi River from St. Louis, Missouri to Cairo, Illinois (Simons.