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The Byrranga Mountains (Russian: го́ры Бырра́нга) are a mountain range in the middle of the Taymyr Peninsula, Siberia, Russia, located north and west of Lake Taymyr and running for about 1,100 km, forming a looping curve that runs roughly in a southwest to northeast direction. The name is from Nganasan бъранга [bəranga] 'large rocky mountain.'
The Byrranga range is composed of siltstones and intrusive rocks of neutral composition, but there are vast areas of exposed limestone formation. The range has deep canyons and ravines, as well as a few small glaciers in its eastern zones. These mountains are not very high, being on average about 500 m (1,600 ft). The highest peak is 1,146 m (3,760 ft).
The rivers Khutudabiga and Chetyrekh have their sources in the Byrranga Range. The lower Taymyr River flows northwards cutting across these mountains. The lowlands located to the north and the south of these mountains are covered with tundra, small lakes and wetlands (bogs and marshes).
This mountain range falls into the Krasnoyarsk Krai administrative division of the Russian Federation and is part of the Great Arctic State Nature Reserve, the largest nature reserve in Russia. However, the area is very remote, there is almost no population, and access is very difficult for the lack of roads and settlements.
- Location: 
- Taymyr area information (there is a picture of the Byrranga mountains over a lake): 
- Pictures: 
- Geology:  and 
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