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However, the path along the river's deepest point is fractal in the same way that the coastline is. Even when detailed maps are available, the length measurement is not always clear. A river may have multiple channels, or anabranches. The length may depend on whether the center or the edge of the river is measured.
Rank Country Waterways Date of information — World 2,293,412: 2017 1 Russia 317,505: 2017 2 Brazil 153,348: 2017 3 China 138,357: 2017 [3] European Union 53,384: 2017 4 United States
The great bend of the Niger River, seen from space, creates a green arc through the brown of the Sahel and Savanna. The green mass on the left is the Inner Niger Delta, and on the far left are tributaries of the Senegal River. Mud houses on the center island at Lake Debo, a wide section of the Niger River
It can be thought of as a list of the biggest rivers on Earth, measured by a specific metric. For context, the volume of an Olympic-size swimming pool is 2,500 m 3 (88,000 cu ft). The average flow rate at the mouth of the Amazon is sufficient to fill more than 83 such pools each second.
Unusually significant tributaries appear in this list, under the river into which they drain. The longest river in the Americas is the Amazon River. The length of the Amazon River is usually said to be "at least" 6,400 km (4,000 mi), [1] but reported values lie anywhere between 6,275–7,025 km (3,899–4,365 mi). [2]
The list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies.
Akanyaru River Rwanda and Burundi: Akagera River Rwanda and Tanzania: Bahr al-Arab Sudan and South Sudan: Caledon River Lesotho and South Africa: Chobe River Namibia and Botswana: Congo River Democratic Republic of Congo and Republic of Congo: Donga River Nigeria and Cameroon: Kagitumba river Rwanda, Uganda and Tanzania: Kasai River Kwango River
Countries by land border length Antarctica and countries in purple are those without any land border. This list gives the number of distinct land borders of each country or territory, as well as the neighboring countries and territories. The length of each border is included, as is the total length of each country's or territory's borders. [1]