On the Mississippi River, just south of its confluence with the Missouri River.
St.-Louis is one of the busiest inland ports in the United States, with shipping connections:
- to the Upper Mississippi river,
- to Chicago and the Great Lakes,
- to the Ohio River system, and
- to the Gulf of Mexico.
Major cities along the Mississippi river: Minneapolis, St.-Louis, Memphis, New Orleans.
St. Louis is chiefly a commercial center, because of its central location in the United States and its excellent transportation facilities.
St. Louis is also a hub of the Interstate Highway System and is a center for warehousing and the trucking industry.
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