Key Facts about Kolyma River

About Kolyma River:

• Location: It is a river in northeastern Siberia, far eastern Russia, rising in the Kolyma Mountains.
• It is 2,129 km long and drains an area of 647,000 square km. 
• Course:
  • In its upper course, it flows through narrow gorges with many rapids.
  • The Kolyma River cuts through the majestic Verkhoyansk Range, one of the longest mountain ranges in Siberia. 
  • Gradually, its valley widens, enters the wide, flat, and swampy Kolyma Lowland, and flows northeastward to discharge into the East Siberian Sea (a marginal sea in the Arctic Ocean). 
• It is the largest river system underlain by continuous permafrost. For about eight months of the year (late September until early June), the river is frozen to depths of several meters.
• It is primarily fed by spring snowmelt and summer rainfall. 
• The entire basin is covered by tundra or thin, stunted forest and has a sparse human population. 
• The river has a mean annual discharge of about 136 cubic kilometers of water per year, making it one of the six largest rivers to drain into the Arctic Ocean.