Tumara

The Tumara (Russian: Тумара; Yakut: Тумара) 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.^[1] The Tumara has a length of 236 kilometres (147 mi) and a drainage basin area of 10,300 square kilometres (4,000 sq mi).^[2] The river is a destination for rafting.^[3]

Tumara Тумара
Last stretch of the Aldan with the Tumara on the left.
Mouth location in Yakutia, Russia
Location
Country	Russian Federation
Physical characteristics
Source	Verkhoyansk Range
• coordinates	64°53′14″N 130°27′36″E
Mouth	Aldan River
• coordinates	63°27′34″N 129°34′49″E
Length	236 km (147 mi)
Basin size	10,300 km2 (4,000 sq mi)
Discharge
• average	67 m3/s (2,400 cu ft/s)
Basin features
Progression	Aldan→ Lena→ Laptev Sea

The name of the river comes from the Yakut language tumara, meaning "tundra".^[4]

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.^[5]

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.^[5]

Its longest tributaries are the 110 km (68 mi) long Nuora (right) and the 78 km (48 mi) long Nyorkyunde.^[3]

Basin of the Lena with the Tumara River in the upper right.

See also

• List of rivers of Russia
• List of fossiliferous stratigraphic units in Russia