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Idrijca facts for kids

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Coordinates: 49°09′06″N 13°44′25″E / 49.15167°N 13.74028°E / 49.15167; 13.74028
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The Idrijca river near the Wild Lake
The Idrijca river near the Wild Lake
Country  Slovenia
Municipalities Idrija, Cerkno, Tolmin
 - left Nikomlja, Kanošica, Trebušica
 - right Belca, Zala, Cerknica, Bača
 - location near Vojsko, Karst Plateau, Slovenia
 - elevation 960 m (3,150 ft)
 - coordinates 46°0′45″N 13°52′45″E / 46.01250°N 13.87917°E / 46.01250; 13.87917
Mouth Soča
 - location Most na Soči, Tolmin, Slovenia
 - elevation 150 m (492 ft)
 - coordinates 49°09′06″N 13°44′25″E / 49.15167°N 13.74028°E / 49.15167; 13.74028
Length 60 km (37 mi)
Basin 598 km² (231 sq mi)

The Idrijca is a river in western Slovenia that flows through the Idrija Hills and Cerkno Hills. It is a tributary of the Soča river.

The area of the upper Idrijca, from its source to the town of Idrijca (a distance of about 30 km), is part of the Krajinski Park Zgornja Idrijca ("Upper Idrijca Natural Park"). Here there are many karst features and an important diversity of plant species.


The Idrijca river has a length of 60 km (37.3 mi) and a drainage basin with an area of 598 km2 (231 sq mi).

This river is one of the few places where the Marble trout (Salmo marmoratus) is found.


The source of the Idrijca is in Mrzla Rupa, part of the small town of Vojsko in the municipality of Idrija, western Slovenia, at an altitude of 960 m (3,150 ft).

From its source, the Idrijca flows to the southeast and then, after its confluence with the Beca river, turns to the northeast. Then, after passing through the town of Idrija, the river turns to the northwest and joins the Soča in Most na Soči, to the south of Tolmin.

The Idrijca passes through the municipalities of Idrija, Cerkno and Tolmin.

Main tributaries

Most of the tributaries of the Idrijca river are small stream. The most important is the Bača with a length of 22 km (14 mi); it joins the Idrijca in the village of Bača pri Modreju, in the municipality of Tolmin.

One of the tributaries is the Jezernica river, that is only 55 m (180 ft) long and which originates from the Wild Lake (Slovene: Divje jezero).


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