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  1. River - Wikipedia

  2. River - National Geographic Society

  3. 10 Most Famous Rivers In The World - WorldAtlas

  4. Rivers | National Geographic

  5. Understanding Rivers - National Geographic Society

  6. National Wild and Scenic River System | Rivers.gov

  7. River | Definition, Examples, Importance, & Facts | Britannica

  8. Rivers, Streams, and Creeks | U.S. Geological Survey - USGS.gov

  9. Explore Rivers of the U.S. - American Rivers

  10. Explore rivers - BBC Bitesize