The Unica is a river in Slovenia. It starts as the underground confluence of the

Pivka Pivka (, german: St. Peter in Krain, it, San Pietro del Carso) is a small town in Slovenia in the Pivka Basin in the Karst region. It is the seat of the Municipality of Pivka. It belongs to the traditional region of Inner Carniola. Name Pivka ...

and the Rak in Planinska jama. This is the largest confluence of underground rivers in Europe. further, the Unica emerges near Planina. It flows north through the Planina Karst Field (''Planinsko Polje'') through the municipalities of

Postojna Postojna (; german: Adelsberg, it, Postumia) is a town in the traditional region of Inner Carniola, from Trieste, in southwestern Slovenia. It is the seat of the Municipality of Postojna.

Cerknica Cerknica (; , german: Zirknitz''Leksikon občin kraljestev in dežel zastopanih v državnem zboru,'' vol. 6: ''Kranjsko''. 1906. Vienna: C. Kr. Dvorna in Državna Tiskarna, p. 120.) is a town in the Karst region of southwestern Slovenia, with a p ...

, and

Logatec Logatec (; german: Loitsch, it, Longatico) is a town in Slovenia. It is the seat of the Municipality of Logatec. It is located roughly in the centre of Inner Carniola, between the capital Ljubljana and Postojna. The town of Logatec has seen rap ...

, where it returns underground.http://www.geopedia.si/Geopedia_en.html#T1193_F5567:10114012_x442141.871_y81796.85149999999_s14_b4 Geopedia.si It then flows for about another underground, emerging lowerhttp://www.burger.si/Cerknica/PlaninskoPolje/uvod_eng.htm Planinsko polje at multiple springs near

Vrhnika Vrhnika (; german: Oberlaibach;''Leksikon občin kraljestev in dežel zastopanih v državnem zboru,'' vol. 6: ''Kranjsko''. 1906. Vienna: C. Kr. Dvorna in Državna Tiskarna, p. 120. la, Nauportus) is a town in Slovenia. It is the seat of the Muni ...

to form the

Ljubljanica The Ljubljanica (), known in the Middle Ages as the ''Sava'', is a river in the southern part of the Ljubljana Basin in Slovenia. The capital of Slovenia, Ljubljana, lies on the river. The Ljubljanica rises south of the town of Vrhnika and flow ...

River.

References

External links

Planinsko polje
* ttp://www.dedi.si/dediscina/89-planinska-jama dedi.si image: http://services.dedi.si/DEDIServer/res/media/image/1176/STRICT/100?1265369496 {{Commons category, Unica Rivers of Slovenia Subterranean rivers Municipality of Postojna Municipality of Cerknica Municipality of Logatec