The rivers of Mongolia belong to the inland catchment basins of the Arctic Ocean, the Pacific Ocean and Central Asia Inland Basin. The higher and middle Selenge, the biggest river in the country and part of the Yenissei river belongs to the Arctic Ocean drainage basin.

In the northern and western mountainous parts of Mongolia, the water network is of high density. The southern central and south eastern parts of the country have a few rivers and other water resources and they are usually situated in depressions without any outflows.

Mongolia has numerous saltwater and freshwater lakes, which are great for camping, watching bird life, hiking, swimming and fishing.  The Great Lakes Depression is situated in the eastern part of the Mongolia Altai and consists of a few hollows with bigger lakes. The largest is the low-lying, saltwater lake Uvs Nuur (covering an area of 3.350 sq.km). The most popular is the magnificent Khovsnol Nuur (2,620 sq.km), the largest fresh-water lake in Central Asia, which contains 65% of Mongolia’s (and 2% of the world’s) fresh water

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