Category
page 1Geology of Croatia
Pannonian Basin
plain in Europe
Adriatic Plate
small tectonic plate
Imotsko Polje
polje (karst field) in Dalmatia, Croatia
Ličko polje
polje (karst field) in Lika, Croatia
Sinjsko Polje
polje (karst field) in Dalmatia, Croatia
Kosovo polje
karst field in Croatia

Gacko polje
karst field in Croatia
Rupnica
300px|thumbnail|right|Columnar rhyolite at Rupnica
Rupnica is an outcrop of columnar-jointed rhyolite in Croatia. It lies in the southwest of Voćin. The site used to be a quarry but is now a natural heritage. On 14 October 1948 Rupnica was declared the first natural heritage site of Croatia.