Two Major Rivers Flow Side-By-Side Without Mixing For Miles In Brazil

Near Manaus, the dark, acidic waters of the Rio Negro meet the sandy-colored, alkaline waters of the Solimões River (the upper Amazon). Due to differences in temperature, speed, and density, they flow distinctly parallel for over 6 kilometers before finally merging.

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https://en.wikipedia.org/wiki/Meeting_of_Waters

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Published: March 30, 2026
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Brazil Geography Nature Weird Amazon River Rio Negro Solimoes River Meeting Of Waters Manaus River Phenomena

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