Karst (Italian: Carso; Slovene: Kras), also known as the Karst Plateau, is a limestone borderline plateau region extending in southwestern Slovenia and northeastern Italy. It gave the name to karst topography.
It lies between the Vipava Valley, the low hills surrounding the valley, the westernmost part of the Brkini Hills, northern Istria, and the Gulf of Trieste. The western edge of the plateau also marks the traditional ethnic border between Italians and Slovenes. The region gave its name to the karst topography. For this reason, it is also referred to as the Classical Karst.
Read more about Kras: Geographical Position, Language, Culture and Traditions, Prominent Natives and Residents, Geographical Extension