Major river basins of the world | GRID-Arendal - Maps & Graphics library - 0 views
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K Epps on 10 Sep 13"Rivers form a hydrological mosaic, with an estimated 263 international river basins covering 45.3% of the land surface area of the earth, excluding Antarctica. This graphic shows the locations of 26 of the world's major river basins. A basin is defined as the land area (watershed) where all surface water drains to a certain river."