1.Missouri:source-from montana.
2.Arkansas:source-from central colorado.
3.Ohio-Allegheny:source-potter county Pennsylvania.
The two major rivers that flow into the Mississippi river are the Missouri river and Ohio River.
The Mississippi River
Ohio, Missouri, and Arkansas river
The Missouri does, the Colorado does not. It empties instead into the Sea of Cortez.
There are thousands of rivers that flow into the Mississippi river. These include the Crow river, the St. Croix river, and the Kickapoo river.
The Missouri river's source are at the Gallatin, Madison, and Jefferson Rivers in Montana, and they flow to the Mississippi River, at St. Louis.
Mississippi River, Brazos River, Missouri River, and Ohio River.
Ohio Missouri Arkansas
The major rivers are the the Missouri, Ohio, and the Arkansas River. Other tributaries are the Minnesota River (Minnesota), Illinois River (Illinois), White River (Arkansas), Yazoo River (Mississippi), and part of the Red River (Louisiana).
Quite a lot of them
Many rivers flow into the Mississippi River. The two largest are the Missouri from the west and the Ohio from the east.
Albany river,Moose river,East main river and Rupert river