The Great Vasyugan Mire, a large swamp system, is located in the central sector of the West Siberian plain. The mire occupies a large area of the Ob and Irtysh watershed and stretches between latitudes 55'35' and 58'40' North, and longitudes 74'30' and 83'30' East. Mire extension from west to east is about 550 km, from north to south in the axial part - in average 50-80 km. If with spurs, or "tongues" are also taken into account, spread of the mire from north to south reaches 270 km.
The area of the Mire is over 55 000 m*, which is about 2% of the whole area of peat bogs of the world. The landscape structure of the Great Vasyugan Mire includes bogs (32%), fens (35%) and forested mires (33%).
(Source: http://whc.unesco.org/en/tentativelists/5114/ Application to declare the place as World Hertitage site )
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