[1] The name of the river is based on the Yakut word "Börölöökh" (Бөрөлөөх), referring to a place where there are wolves.

[3] 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.

[5] After passing by Susuman it heads roughly southwestwards and finally it meets the Ayan-Yuryakh shortly upstream from its confluence with the Kulu.

[6][7] The river flows across the Upper Kolyma Highlands and is fed primarily by rain and snow.