Idrija ( it, Judrio or ', fur, Judri, Venetian Slovene dialect ''Juruda'') is a border river between

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 ...

and

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

. It separates the Gorizia Hills from the Slavia Friulana. It emerges under the Kolovrat ridge and flows southwest towards Friuli where it joins the Torre. The river was historically important as separating the

Republic of Venice The Republic of Venice ( vec, Repùblega de Venèsia) or Venetian Republic ( vec, Repùblega Vèneta, links=no), traditionally known as La Serenissima ( en, Most Serene Republic of Venice, italics=yes; vec, Serenìsima Repùblega de Venèsia, ...

from the Habsburg Lands,

from

Austria-Hungary Austria-Hungary, often referred to as the Austro-Hungarian Empire,, the Dual Monarchy, or Austria, was a constitutional monarchy and great power in Central Europe between 1867 and 1918. It was formed with the Austro-Hungarian Compromise of ...

, and since 1947 Italy from Yugoslavia.

References

Border rivers Rivers of the Slovene Littoral Rivers of Friuli-Venezia Giulia {{Slovenia-river-stub