Kustuur
Kustur lies in the mountainous Bytantay valley of northern Yakutia. The Bytantay flows through the Verkhoyansk country before joining the Yana, which carries its waters onward to the Laptev Sea. Forested slopes and high ridges enclose the river, and the northern winter holds its channels under ice for months. The valley offers a passage through the mountains between the Lena and Yana basins.