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Largest-Area Drainage Basin High Points

Basins with over 750,000 square kilometers

Showing Klaas Koehne's most recent ascent dates for climbed peaks (1 out of 27, or 3.7%)

RankDrainage BasinArea-SqMiPeak Elev-Ft CountryRange (Level 2)AscentsAscent Date
1.Nile1,204,682Mount Stanley16,762Congo DRC/UgandaEast Africa Mountains372013-12-30
 Ganges635,381Mount Everest29,029China/NepalHimalaya59 
 Indus388,658K228,261Pakistan/ChinaCentral Asia Ranges14 
 Yangtze673,824Gongga Shan24,790ChinaTibet and Central China2 
 Mekong310,342Kawagebo22,113ChinaTibet and Central China0 
 Amazon2,299,219Nevado Yerupaj√°21,709PeruAndes4 
 Parana1,021,207Nevado de Cachi20,932ArgentinaAndes3 
 Huang He322,527Amnye Maqen20,610ChinaTibet and Central China0 
 Yukon332,610Denali20,310United StatesAlaska-Yukon Ranges219 
 Orinoco380,117Ritacuba Blanco17,749ColombiaAndes17 
 Jubba310,577Mount Kenya17,057KenyaEast Africa Mountains35 
 Congo1,432,747Volcan Karisimbi14,826Congo DRC/RwandaEast Africa Mountains9 
 Ob1,167,557Gora Belukha14,783Russia/KazakhstanMongolia Ranges4 
 Mississippi1,249,933Mount Elbert14,433United StatesRocky Mountains1494 
 Shatt-al-Arab350,475Zard Kuh13,848IranZagros Mountains2 
 Danube308,510Piz Bernina13,284SwitzerlandAlps39 
 Mackenzie695,729Mount Columbia12,274CanadaRocky Mountains26 
 Nelson420,731Mount Forbes11,867CanadaRocky Mountains4 
 Yenisey999,518Gora Ak-Oyuk11,824RussiaMongolia Ranges0 
 Orange379,838Thabana Ntlenyana11,424LesothoSouthern Africa27 
 Lena953,330Pik BAM10,079RussiaBaikal Area Ranges0 
 Niger836,063Mont Oku9879CameroonWest Africa Mountains3 
 Zambezi537,204Sapitwa Peak9849MalawiSouthern Africa21 
 Amur795,481Paektu-san9003China/North KoreaKorea-Amur Area4 
 Murray412,171Mount Kosciuszko7310AustraliaGreat Dividing Range260 
 Tocantins298,325Chapada dos Veadeiros-Pico 16915548BrazilBrazilian Highlands0 
 St. Lawrence518,209Mount Marcy5344United StatesNorth America Plains1950 

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List Description

This list shows the 27 largest primary river basins in the world by area, all of which are over 750,000 square kilometers. Only basins of rivers that empty into the ocean are included--excluded are tributary basins of rivers that flow into other rivers, and internal drainage basins then end in a internal sea or dry depression. For example, the Missouri River Basin is not here, since the Missouri flows into the Mississippi; and the basin of the Caspian Sea or Volga River are not here, either, since they never flow into an ocean.

Of course, there are many unlisted river basins here with higher peaks than many of the peaks on this list. But those peaks are not in a large basin.


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