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Where is the source of the Missouri River?

User Adam Gritt
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23 votes

Answer:

The combined length of the Missouri-Mississippi river system, from headwaters [of the Missouri river] in southern Montana, to the mouth of the Mississippi near New Orleans [Louisiana], is aproximately 6,267 km (3,895 mi), making it the world's fourth longest river system, after the Nile, the Amazon, and the Yangtze.

Step-by-step explanation:

User BoeroBoy
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