St Louis lies on the west bank of the Mississippi River. Just north of the city proper, the Missouri River joins the Mississippi.
The Missouri river joins the Mississippi at St. Louis.
The Missouri River joins the Mississippi very near St Louis.
missouri
St. louise river
The Arkansas River.
The Missouri River is actually a major tributary to the Mississippi River, so the question does not make sense
The Missouri flows more or less in a North-west to South-East direction before it joins with the Mississippi just north of St Louis.
Arkansas river
The Missouri River.
The Missouri River flows into the Mississippi River just north of Saint Louis, Missouri.
The major tributary of the Mississippi River that flows in the southeasterly direction to join the Mississippi River near St. Louis is the Missouri River. The Missouri River and the Mississippi River join at the border between Missouri and Illinois.