Rivers of russia
In Russia, more than 2,8 million rivers with a total length of 12,4 million km, the total annual run-off of rivers is 4 258,6 km3 (Of which 90% falls on the basins of the Arctic and Pacific oceans). The number of rivers longer than 500 km (the so-called large rivers) is 214 (0,008% of the total number of rivers), the number of medium rivers (101 km to 500 km) is 2 833 (0,1% of the total number), 133 503 rivers and 2 843 046 km of total length falls on rivers and streams from 10 to 100 km, waterways up to 10 km in length 2 559 454 total length 5 118 642 km. The most full-flowing rivers (in terms of average annual runoff) are: the Yenisei (635 km?), Lena (537 km3), Ob (405 km3), Amur (378 km)3), The Volga (238 km)3). The rivers in Russia have traditionally played a huge role - not only as transport routes, but also as the routes of settling and economic development of new territories. Almost all large cities are built on rivers.