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The Missouri River is Also Called “Big Muddy”
One of the most commonly used nicknames of the Missouri River is “Big Muddy.” The nickname came from the fact that the once clear water of a mountain stream picks up so much sediment as it travels away from its source. The sedimentation is what gives the river its muddy look. The Mississippi is also sediment-heavy, but once the two merge, it should be known as the biggest muddy river.
