Upa River
Encyclopedia
Tula Oblast
Tula Oblast is a federal subject of Russia with its present borders formed on September 26, 1937. Its administrative center is the city of Tula. The oblast has an area of and a population of 1,553,874...
, Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
, one of the main tributaries
Tributary
A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...
of the Oka River
Oka River
Oka is a river in central Russia, the largest right tributary of the Volga. It flows through the regions of Oryol, Tula, Kaluga, Moscow, Ryazan, Vladimir, and Nizhny Novgorod and is navigable over a large part of its total length, as far upstream as to the town of Kaluga. Its length exceeds...
.
The river is 345 km long; the city of Tula
Tula, Russia
Tula is an industrial city and the administrative center of Tula Oblast, Russia. It is located south of Moscow, on the Upa River. Population: -History:...
is on its banks. The name of the river is of Baltic origin.