The Tumara (; ) is a river in the Sakha Republic (Yakutia), Russia, a right tributary of the Aldan, part of the Lena basin. It flows across an area that is largely desolate, except for Segyan-Kyuyol village.Google Earth The Tumara has a length of and a drainage basin area of . The river is a destination for rafting.
The name of the river comes from the Yakut language tumara, meaning "tundra".Murzaev EM, Turkic place names / Baskakov NA . - Moscow: Eastern Literature RAS, 1996 .-- P. 149 .-- 254 p. - 500 copies. - ISBN 5-02-016806-8 .
Course The Tumara originates in the slopes of the southwestern Verkhoyansk Range. In the upper section of its course the river displays all the characteristics of a mountain river, flowing roughly southwards within a deep and narrow valley bound by steep slopes that cuts across the Kelter (Көлтөр) and Munni (Мунний) ranges.
After leaving the mountainous area in its middle course the Tumara flows through a floodplain and forms meanders, still following a generally southward direction. In its lower course the river expands and the floodplain becomes wider, its riverbed dividing into slowly-flowing arms. Finally the Tumara meets the right bank of the Aldan River, a little upstream from Batamay and downstream from river Kele.1,000,000 scale Operational Navigation Chart; Sheet C-6
Its longest tributaries are the long Nuora (right) and the long Nyorkyunde.Tumara - Water of Russia
See also List of rivers of Russia List of fossiliferous stratigraphic units in Russia
References