Rupnica
Coordinates: 45°36′18″N 17°31′55″E / 45.604961°N 17.532028°E
Rupnica is an outcrop of columnar basalt 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.
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