Dzhugdzhur
Mountain range in eastern Siberia, Russia
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![[Photos by K.G. Klimova] Bakalin V, Klimova K, Bakalin D, Choi SS (2021) Liverwort flora of Ayan – a gained link between subarctic and hemiboreal floras in West · CC BY 4.0](https://commons.wikimedia.org/wiki/File:Liverwort_flora_of_Ayan_(10.3897-BDJ.9.e65199)_Figure_4.jpg){kind=link}
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Through Gold
The mountains are quite deserted, the one exception being the gold mines that have operated in the range since the 1920s.
Geography
The east range is bound by the northwest coast of the Sea of Okhotsk. To the northwest the range limits with the Yudoma-Maya Highlands, to the southwest with the Stanovoy Range, to the south with the Dzhagdy Range, and to the northeast with the Kolyma Mountains. The Maya, the Maymakan, and the Mati are among the rivers having their source in the range.
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Geology
The range was formed by an asymmetrical fold. The southwestern half of the mountains is composed of gneiss and granite from the Precambrian, while the northeast contains Mesozoic shale and limestone as well as Cretaceous and Paleocene igneous rock.
Ecology and climate
The coastal stretch of the range is populated by Japanese stone pine and Dahurian larch. Parts of the range occupied by the Okhotsk-Manchurian taiga ecoregion contain swathes of Jezo spruce up to elevations of 1,300 m.
The climate is wet and cold, with wet rainy summers and severe winters.