The Byoryolyokh () is a river in Magadan Oblast, Russian Federation. It is a left tributary of the Ayan-Yuryakh of the Kolyma river basin.
The name of the river is based on the Yakut word "Börölöökh" (Бөрөлөөх), referring to a place where there are wolves.Leontyev V.V., Novikova K.A. Toponymic Dictionary of the North-East of the USSR / Scientific ed. G. A. Menovschikov; FEB AN USSR . North-East complex. Research institute for Archeology, History and Ethnography. - Magadan: Magad. Prince Publishing House, 1989 . P. 85 . -
History The Byoryolyokh was first put on the map in 1891 by Ivan Chersky and for almost four decades it was thought that it was one of the rivers whose confluence formed the Kolyma. However, after a more thorough survey of the region carried out by Sergei Obruchev in 1929 it was established that the two rivers forming the Kolyma are the Ayan-Yuryakh and the Kulu.B.G. Shcherbinin, V.V. Leont'ev. Where geologists have gone/ V. F. Bely, G. L. Maltsev & K. A. Novikova - reviewers - Magadan Book Publishing House Magadan, 1980. - pp. 25-27.
Course The Byoryolyokh has its sources at the northern end of the Okhandya Range and heads southwards below the western slopes of the range. After passing by Susuman it heads roughly southwestwards and finally it meets the Ayan-Yuryakh shortly upstream from its confluence with the Kulu.Google Earth
The river flows across the Upper Kolyma Highlands and is fed primarily by rain and snow. Many stretches freeze to the bottom in the winter. The tributaries of the Byoryolyokh are mostly short. Some of the main ones are the long Burgandya, the long Taboga, the long Malyk-Siena flowing from Lake Malyk, the long Susuman and the long Sylgybystakh from the left, as well as the long Chay-Yuryue from the right.
See also List of rivers of Russia
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