Blue Nile

The Blue Nile is a river originating at Lake Tana in Ethiopia. It is the major tributary of the Nile Basin Watershed and is also referred to as the "Blue Nile" once it is in the territory of Sudan. With the White Nile, it is one of the two major tributaries of the Nile. The Blue Nile supplies about 80% of the water in the Nile during the rainy season.

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