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Bocna Slovenia - Dreta River.JPG
The Dreta west of Bočna
Basin countries Slovenia
Length 29 km (18 mi)[1]
Source elevation 1,100 m (3,600 ft)[1]
Mouth elevation 339 m (1,112 ft)[1]
Basin area 126 km2 (49 sq mi)[1]

The Dreta (pronounced [ˈdɾeːta]) is a river in Styria, northeastern Slovenia. The river is 29 km (18 mi) long.[1] Its source is near the Črnivec Pass in the Kamnik Alps. It flows through the town of Gornji Grad, Bočna, and Šmartno ob Dreti, and merges with the Savinja River in Nazarje. The Dreta Valley (Slovene: Zadrečka dolina) is named after the river.[2]


The Dreta was attested in written sources in 1243 as super fluvio Driete (and as pey der Driet in 1340, Driete in 1430, and Trijet in 1524). The origin of the name is uncertain, but is likely connected with the Croatian hydronym Dretulja and the Slovak hydronym and place name Drietoma. It may be derived from the Indo-European root *dre- 'to flow'.[2]


  1. ^ a b c d e "Reke, dolge nad 25 km, in njihova padavinska območja" [Rivers longer than 25 km and their catchment areas] (in Slovene, English). Statistical Office of the Republic of Slovenia. 2002. 
  2. ^ a b Snoj, Marko. 2009. Etimološki slovar slovenskih zemljepisnih imen. Ljubljana: Modrijan and Založba ZRC, p. 126.

Coordinates: 46°17′N 14°54′E / 46.283°N 14.900°E / 46.283; 14.900