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Concept
Vltava
Summary
Vltava (ˈvʊltəvə,_ˈvʌl- , ˈvl̩tava; Moldau ˈmɔldaʊ) is the longest river in the Czech Republic, running southeast along the Bohemian Forest and then north across Bohemia, through Český Krumlov, České Budějovice and Prague, and finally merging with the Labe at Mělník. It is commonly referred to as the "Czech national river".
Both the Czech name Vltava and the German name Moldau are believed to originate from the old Germanic words wilt ahwa 'wild water' (compare Latin aqua). In the Annales Fuldenses (872 AD) it is called Fuldaha; from 1113 AD it is attested as Wultha. In the Chronica Boemorum (1125 AD) it is attested for the first time in its Bohemian form, Wlitaua.
The Vltava River is long and drains an area of in size, over half of Bohemia and about a third of the Czech Republic's entire territory. As it runs through Prague, the river is crossed by 18 bridges (including the Charles Bridge) and covers within the city. The water from the river was used for drinking until 1912 when the Vinohrady Water Tower ceased pumping operations. It is, however, the source of drinking water in case of failures of or repairs to the water supply from the Želivka and Kárané sources. The Podolí water processing plant is on standby for such cases with the long section of the river upstream of the Podolí plant under the stricter, second degree of pollution prevention regulations.
The height difference from source to mouth is about and the largest stream at the source is named Černý Potok (Black Brook) or Teplá Vltava (Warm Vltava). The Vltava itself originates by a confluence of two streams, the Warm Vltava (cs), which is longer, and the Cold Vltava (Studená Vltava), sourcing in Bavaria. Along its course, Vltava receives many tributaries, the biggest being Otava and Berounka from the left and Lužnice and Sázava from the right side.
Between the confluence with the Labe(Elbe) at Mělník and Prague, the river is navigable by vessels of up to displacement.
Official source
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