Idrija (river)

{{Short description|Border river between Italy and Slovenia}}

{{Distinguish|Idrijca|Idrija}}

{{Infobox River

|image=FiumeJudrioAltoCorso.jpg

|image_caption=The upper reaches of the Idrija

|source1=below Kolovrat near Volče

|source1_location={{coord|46.16424889|N|13.65066217|E}}

|country={{SLO}}, {{ITA}}

|mouth=Torre

|mouth_location=Romans d'Isonzo

|pushpin_map=Italy Friuli-Venezia Giulia

|source1_elevation=876 m a.s.l.

|length=50 km

| map = {{infobox mapframe | stroke-color = #0000ff | zoom = 9 }}

}}

Idrija ({{langx|it|Judrio}} or {{lang|it|Iudrio}}, {{langx|fur|Judri}}, Venetian Slovene dialect Juruda) is a border river between Slovenia and Italy. 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 from the Habsburg Lands, Italy from Austria-Hungary,{{cite journal |url=http://isn.zrc-sazu.si/files/file/Traditiones/Ravnik/Vstop%20v%20EU%20v%20dolini%20Idrije,%20Trad_.pdf |title=Accession to the EU in the Valley of Idrija |first=Mojca |last=Ravnik |journal=Traditiones |volume=35 |issue=1 |pages=167–182 |year=2006 |doi=10.3986/Traditio2006350109 |id={{COBISS|ID=25571117}}}} and since 1947 Italy from Yugoslavia.{{cite web |url=https://www.rtvslo.si/radio-koper/prispevki/zgodbe/mejna-reka-idrija/648165 |title=Mejna reka Idrija |language=sl |trans-title=Idrija, the Border River |date=21 November 2022 |publisher=MMC RTV Slovenia}}