The Korana is a river in central Croatia and west Bosnia and Herzegovina. The river has a total length of and watershed area of . The river's name is derived from Proto-Indo-European ''*karr-'' 'rock'. It was recorded in the 13th century as ''Coranna'' and ''Corona''. Korana rises in the eastern parts of

Lika Lika () is a traditional region of Croatia proper, roughly bound by the Velebit mountain from the southwest and the Plješevica mountain from the northeast. On the north-west end Lika is bounded by Ogulin-Plaški basin, and on the south-east by ...

and creates the Plitvice Lakes, a UNESCO World Heritage Site. Downstream from Plitvice Lakes, the Korana river forms a 25 kilometers long border between Croatia and Bosnia and Herzegovina near Cazin. From there it flows northwards through Croatia, where it finally reaches the river Kupa at

Karlovac Karlovac () is a city in central Croatia. According to the 2011 census, its population was 55,705. Karlovac is the administrative centre of Karlovac County. The city is located on the Zagreb- Rijeka highway and railway line, south-west of Zagre ...

. The soil of the

karst Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ro ...

region, through which this river flows consists of limestone. Under certain physical and chemical conditions the river is constantly creating new soil from plants (see: Plitvice Lakes). The river Slunjčica flows into Korana at Rastoke/ Slunj, and the river Mrežnica flows into it at

. In the Korana exist rich molluscan assemblages composed of 33 species.Luboš Beran; (2013) ''Aquatic molluscan fauna (Mollusca) of the Korana River (Croatia)'' p. 232, Natura Croatica

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Karlovac: četiri rijeke - jedan grad
Rivers of Croatia Rivers of Bosnia and Herzegovina International rivers of Europe Landforms of Karlovac County Bosnia and Herzegovina–Croatia border Border rivers {{Croatia-river-stub

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