The Udya or Udzha ( or Уджа; , Ucaa) is a river in Yakutia (Sakha Republic), Russia. It is a right tributary of the Anabar with a length of . Its drainage basin area is .
The river flows north of the Arctic Circle, in the northern limits of the Central Siberian Plateau and the North Siberian Lowland. The area is lonely and desolate, devoid of settlements. The Beyenchime-Udzha interfluve is an area where diamonds are found.Certain characteristics of diamonds from placers in northeastern Siberian Platform
Course The Udya is the third largest tributary of the Anabar. Its sources are in the vicinity of the sources of the Bur, Buolkalakh and the Beyenchime of the Olenyok basin. It is formed at the confluence of rivers Tokur-Udya and Mas-Udya in an area of lakes. It heads roughly northwestwards all along its course. Finally it joins the right bank of the Anabar from its mouth. The confluence is not far upstream from Saskylakh.Google Earth
The river is fed by rain and snow. It is frozen between early October and late May / early June. The longest tributaries are the long Chyuyompe-Yurege (Чюёмпэ-Юрэгэ) and the long Udyakan (Удьакан) from the right, as well as the long Chymaara (Чымаара) from the left.
Fauna The Udya river is rich in fish species, including broad whitefish, humpback whitefish and peled, among others.Water of Russia, Удьа.
See also List of rivers of Russia
References
External links Schematic map of ancient terrains and kimberlitic fields in the Siberian craton Fishing & Tourism in Yakutia