{"id":11838,"date":"2023-11-23T12:05:15","date_gmt":"2023-11-23T11:05:15","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=11838"},"modified":"2023-11-23T12:05:15","modified_gmt":"2023-11-23T11:05:15","slug":"what-is-the-largest-tributary-of-the-mississippi-river","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/what-is-the-largest-tributary-of-the-mississippi-river\/","title":{"rendered":"What Is The Largest Tributary Of The Mississippi River"},"content":{"rendered":"
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Most people have heard of the iconic Mississippi River, but many are unaware of its largest tributary – the Missouri River. At 2,540 miles long, the Missouri River is not only the longest tributary of the Mississippi, but also the longest river in the United States. Its source is located in the southwestern region of Montana, and it flows south to join the Mississippi River near St. Louis, Missouri. <\/p>\n

Often referred to as “Old Muddy” because of its strong current and the thick layer of silt that covers its bottom, the Missouri River has been an important source of food and transportation for people living in the area for centuries. <\/p>\n

According to the U.S. Army Corps of Engineers, the Missouri River Valley was formed as a result of large-scale glaciation during the last ice age. As a result, the river is over 500 feet deep in some places and serves as a major shipping route. <\/p>\n

The Missouri River plays a significant role in the American economy. The Army Corps estimates that the river contributes over $1 billion to the U.S. gross domestic product annually. It is used to transport goods like coal, timber, grain, and oil. Additionally, the river is popular with fishermen, and its banks are a major draw for recreational activities like camping and boating. <\/p>\n