The Črni Vrh Observatory (Observatorij Črni Vrh, IAU code 106) is located in Western Slovenia, close to the settlement Črni Vrh, near the town of Idrija.
The Godovič Pass is a mountain pass between Ajdovščina and Črni Vrh, both in the Goriška region of Slovenia.
It was first described in 1832 for an occurrence in the Idrija region west of Ljubljana, northwestern, Slovenia.
The ghost town of New Idria, California, a site of mercury mining during the 19th-century California Gold Rush, was named after Idrija.
At the time when Benito Mussolini was willing to modify the Treaty of Rapallo, which cut off a quarter of Slovene ethnic territory from the remaining three-quarters of Slovenes living in the Kingdom of SHS, in order to annex the independent state of Rijeka to Italy, Pašić's attempts to correct the borders at Postojna and Idrija were also undermined by regent Alexander preferring "good relations" with Italy.
Zablujena generacija (Delusive or Stray generation) is a Slovene "saloon" punk - alternative rock musical group from Idrija.
Žirovnica, Idrija, a settlement in the Municipality of Idrija, Slovenia
Govejk, a settlement in the Municipality of Idrija (known as Govejek until 1980)
Idrijske Krnice, a settlement in the Municipality of Idrija (known as (Idrske) Krnice until 1952/1980)
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Ledinske Krnice, a settlement in the Municipality of Idrija (known as Krnice until 1952)