{"id":12118,"date":"2023-11-07T06:35:13","date_gmt":"2023-11-07T05:35:13","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=12118"},"modified":"2023-11-07T06:35:13","modified_gmt":"2023-11-07T05:35:13","slug":"where-does-the-missouri-river-flow-into-the-mississippi-river","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/where-does-the-missouri-river-flow-into-the-mississippi-river\/","title":{"rendered":"Where Does The Missouri River Flow Into The Mississippi River"},"content":{"rendered":"
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Geography <\/h2>\n

The Missouri River is the longest river in North America, stretching 2,340 miles from the Rocky Mountains of Montana to the confluence with the Mississippi River in St. Louis, Missouri. This confluence is one of the most remarkable scenes in North America, and it is the point at which the two great waterways come together. It is a place where the Missouri takes a mighty turn south, giving the rising Mississippi River the 180 degree turn it needs to begin its journey down to New Orleans. Knowing the geography of the Missouri–Mississippi confluence has been essential for human development of the region and allows us to chart the history of the nation itself.<\/p>\n

History<\/h2>\n

Throughout its long history, the Missouri-Mississippi confluence has been an important navigational feature. This part of the river has been well-traveled since the 16th century. In the 1700s and 1800s, the confluence was seen as a key point along the voyage of the steamboats from St. Louis to the sea. By the mid-1800s the confluence had cut the travel time from St. Louis to New Orleans by more than half, making it the preferred route for travelers. As the area developed, the tremendous riverside bluffs of limestone slowly began to form a picturesque landscape that draws millions of tourists each year.<\/p>\n

Impact of the Missouri River on the Mississippi River<\/h2>\n

The Missouri River has had a tremendous impact on the Mississippi River. The Missouri adds a significant amount of sediment and water to the Mississippi, which in turn makes it much more dynamic. The sediment from the Missouri helps to fill in areas of the Mississippi, making it less shallow and more navigable. The resulting river is much wider and deeper, and capable of handling larger vessels. The Missouri also adds nutrients to the Mississippi River, helping to support a more diverse range of flora and fauna. <\/p>\n

Navigability<\/h2>\n

At the confluence of the Mississippi and the Missouri, the rivers are navigable from St. Louis to their common mouth. In this section of the Mississippi, the river is generally a slow and meandering 6 to 7 MPH. The Missouri River generally runs with a much slower current and is often slow enough to make navigation quite difficult. When the two rivers meet, the combined flow of the two rivers makes navigation much easier. The navigability of the two rivers combined is a huge factor in the development and expansion of the region.<\/p>\n

Environmental Issues<\/h2>\n