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  2. List of river systems by length - Wikipedia

    en.wikipedia.org/wiki/List_of_river_systems_by...

    In particular, there seems to exist disagreement as to whether the Nile [3] or the Amazon [4] is the world's longest river. The Nile has traditionally been considered longer, but in 2007 and 2008 some scientists claimed that the Amazon is longer [5] [6] [7] by measuring the river plus the adjacent Pará estuary and the longest connecting tidal ...

  3. Nile - Wikipedia

    en.wikipedia.org/wiki/Nile

    The Nile is the longest river in Africa. It has historically been considered the longest river in the world, [3] [4] though this has been contested by research suggesting that the Amazon River is slightly longer. [5] [6] Of the world's major rivers, the Nile is one of the smallest, as measured by annual flow in cubic metres of water. [7]

  4. Amazon River - Wikipedia

    en.wikipedia.org/wiki/Amazon_River

    The Amazon River (UK: / ˈ æ m ə z ən /, US: / ˈ æ m ə z ɒ n /; Spanish: Río Amazonas, Portuguese: Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the longest or second-longest river system in the world, a title which is disputed with the Nile.

  5. What’s the world’s longest river? New expedition aims to ...

    www.aol.com/world-longest-river-expedition-aims...

    The title of “world’s longest river” is officially bestowed upon Africa’s Nile by authoritative sources like Encyclopedia Britannica and Guinness World Records.

  6. List of longest rivers of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_rivers_of...

    The longest rivers of the United States include 38 that have main stems of at least 500 miles (800 km) long. The main stem is "the primary downstream segment of a river, as contrasted to its tributaries". [ 1 ]

  7. List of longest undammed rivers - Wikipedia

    en.wikipedia.org/.../List_of_longest_undammed_rivers

    Second-longest and largest river in the world, undammed as well as unbridged, does not form a delta while joining the sea due to adequate thrust of river water to overcome the sea water wave and tidal thrusts. 1 Lena River: 4,472 km (2,779 mi) 2,500,000 km 2 (970,000 sq mi) 17,000 m 3 /s (600,000 cu ft/s) Arctic Ocean: Longest undammed river in ...

  8. List of rivers by age - Wikipedia

    en.wikipedia.org/wiki/List_of_rivers_by_age

    This river may predate the break-up of western Gondwana as an extension of a proto-Congo river system, 200 Mya during the Jurassic. Ohio: 3~2.5 Mississippi River: Formed when the Laurentide Ice Sheet dammed the north flowing Teays River during the Pre-Illinoian glaciation. The drainage area of the Teays could no longer drain to the north, and ...

  9. List of waterways - Wikipedia

    en.wikipedia.org/wiki/List_of_waterways

    Total length of waterways per country in kilometers. This is a list of waterways, defined as navigable rivers, canals, estuaries, lakes, or firths.In practice, and depending on the language, the term "waterway" covers maritime or inland transport routes, as suggested by "way".