The Vydra is a 23.1 kilometres (14.4 mi) river in the Czech Republic

Czech Republic

The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....

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The Vydra begins in the Bohemian Forest

Bohemian Forest

The Bohemian Forest, also known in Czech as Šumava , is a low mountain range in Central Europe. Geographically, the mountains extend from South Bohemia in the Czech Republic to Austria and Bavaria in Germany...

 near Modrava

Modrava

Modrava is a village and municipality in Klatovy District in the Plzeň Region of the Czech Republic.The municipality covers an area of , and has a population of 62 ....

, at the confluence of the Roklanský potok and the Modravský potok. However, Modravský potok's tributary, the Luzenský potok originates slightly across the Germany–Czech Republic border 1215 metres (3,986.2 ft) up the north slopes of Mt. Lusen

Lusen (Bavaria)

Lusen is a mountain in Bavaria and in the Plzeň Region . Its peak is less than south of the Czech Republic–Germany border. Streams forming on the north side become tributaries of the Vydra....

 ) in Bavaria

Bavaria

Bavaria, formally the Free State of Bavaria is a state of Germany, located in the southeast of Germany. With an area of , it is the largest state by area, forming almost 20% of the total land area of Germany...

 is considered to be the Vydra's true source.

From Modrava, the Vydra flows northward and merges with the Křemelná west of Svojše to form the Otava

Otava River

The Otava is a river in South Bohemia, Czech Republic. It is long and is a left tributary of the Vltava. The river flows through several towns, including Písek, Sušice and Strakonice. The river's name is of Celtic origin. It is a popular river for water sports. The local dialect of Prachens also...

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External links

• Vydra Hydroelectric Power Station
• http://www.jiznicechy.org/en/index.php?path=prir/vydra.htm