The Reka (literally, 'river' in Slovene), also the Inner Carniola Reka ( sl, Notranjska Reka), is a

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

that starts as Big Creek ( hr, Vela voda) in

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

, on the southern side of Mount Snežnik, and flows through western

Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, an ...

, where it is also initially known as Big Creek (). The river is long, of which is in Slovenia. At the village of Škocjan it disappears underground through

Škocjan Caves Škocjan Caves (; sl, Škocjanske jame, it, Grotte di San Canziano) is a cave system in Slovenia. Due to its exceptional significance, Škocjan Caves was entered on UNESCO’s list of natural and cultural World Heritage Sites in 1986. Internati ...

UNESCO World Heritage Site A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...

), flowing underneath the Slovenian

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 ...

. The river continues as part of the

Timavo The Timavo River, known in Slovene as the ' or ', is a two-kilometre stream in the Province of Trieste. It has four sources near San Giovanni ( sl, Štivan) near Duino ( sl, Devin) and outflows in the Gulf of Panzano (part of the Gulf of Triest ...

in Italy. Tracer studies have shown that it also feeds springs elsewhere on the Adriatic Coast between Trieste and Monfalcone. It has a

pluvial regime The river regime generally describes the character of the typical fluctuations of flow of a river, but can also refer to the mathematical relationship between the river discharge and its width, depth and slope. Thus, "river regime" can describe one ...

References

External links

* * Condition of Reka a
Cerkvenikov Mlin
an

- graphs, in the following order, of water level and flow data for the past 30 days (taken by

ARSO The Slovenian Environment Agency (Slovenian: ''Agencija Republike Slovenije za okolje'' or ''ARSO'') is the main organisation for environment of the Republic of Slovenia. It was established in 2001 with a reorganisation of the ''Hydrometeorological ...

) Rivers of the Slovene Littoral Rivers of Inner Carniola Rivers of Croatia International rivers of Europe Sinking rivers Drainage basins of the Adriatic Sea Natura 2000 in Slovenia {{Croatia-river-stub