Kolyma River is one of the coldest rivers that flows through Siberia and is extremely cold because of its location in the Russian Far East. It remains frozen for a major part of the year.
Yenisei River is another Siberian river and has extremely cold temperatures, especially in its upper reaches.
Mackenzie River flows through the Northwest Territories of Canada and experiences freezing temperatures for a major part of the year.
Similar to the Yenisei, the Ob River also flows across Siberia and is susceptible to ice formation and extremely cold temperatures.
The river crosses the capital of Mongolia, Ulaanbaatar, and is famous for freezing in the winter months.
Indigirka River, which is located in northeastern Siberia, is one of the coldest because of the Arctic climate and frigid temperatures in winter months.
This is also a Siberian river subject to freezing temperatures for a larger part of the year.