Pivka (river)

The Pivka is a karst lost river in Slovenia. The river is 27 kilometres (17 mi) in length.[1] The Pivka ends in Planina Cave, where it merges with the Rak River and then the Unica River. The confluence of the Pivka and the Rak is one of the largest subterranean confluences in Europe.[2] The Pivka created Postojna Cave, the longest cave system in Slovenia as well as one of its top tourism sites.

Pivka River
Physical characteristics
  locationZagorje, Pivka
  coordinates45°38′20.47″N 14°13′41.59″E
  elevation555 m (1,821 ft) [1]
Flows to Postojna Cave
45°47′0.43″N 14°12′10.09″E
510 m (1,670 ft) [1]
Length27 km (17 mi) [1]
Basin size262 km2 (101 sq mi) [1]
Basin features
ProgressionUnicaLjubljanicaSavaDanubeBlack Sea


  1. Rivers, longer than 25 km, and their catchment areas, Statistical Office of the Republic of Slovenia
  2. Kogovšek, Janja; Petrič, Metka; Zupan Hajna, Nadja; Pipan, Tanja. "Planinska jama" [Planina Cave]. In Šmid Hribar, Mateja; Golež, Gregor; Podjed, Dan; Kladnik, Drago; Erhartič, Bojan; Pavlin, Primož; Ines, Jerele (eds.). Enciklopedija naravne in kulturne dediščine na Slovenskem [Encyclopedia of Natural and Cultural Heritage in Slovenia] (in Slovenian). Retrieved 17 May 2012.

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