Kobilja () is a river in Central Bosnia, between Skender Vakuf and Imljani. It is a right bank tributary of the Ugar River.
It rises at southeast the slopes of Ježica – Srebrenik masiff, flowing southeast at around above sea level. The river drains the central part of the northern slopes of the Dinaric mountain massif, with a length of .
Kobilja occurs from several sources-bald head, of which the most is Srebrenik (1,010 m), which rises on the south-eastern slopes of the samenamed elevation (Srebrenik, 1,131 m), from the mountain languages (1,276 m). The band around the top is rich in strong sources of drinking water, from which begin the stream basins of the Ugar and Vrbanja rivers. From the Djevojačka ravan (Girls' Plane, above Dunići rocks and Demićka river) to Vakufske Njive (Vaqf Fields) there are over 50 streams. Srebrenik is known locally and as a tanzitno resting place.Spahić M. et al. (2000): Bosna i Hercegovina (1:250.000). Izdavačko preduzeće „Sejtarija“, Sarajevo.Mučibabić B., Ur. (1998): Geografski atlas Bosne i Hercegovine. Geodetski zavod BiH, Sarajevo, .
Among the many smaller tributaries, the most important right stream is Vukovica, and left are: Strašivi potok, and Zlovarski potok (streams).
Watershed of the two basins extends along local roads Skender Vakuf - Turbe - Travnik (via Ilomska, Korićani and Vitovlje). All Ugar's streams flow into Kobilja, and Vrbanja's in Demićka, Grabovička river, and Duboka.
Whole flow of Kobilja is in the municipality of Skender Vakuf. During 1960th, at Kobilji and its tributaries, there were 20 mills.Vojnogeografski institut, Izd. (1955): Skender Vakuf (List karte 1:25.000, Izohipse na 10 m). Vojnogeografski institut, Beograd.
See also Ilomska Pljačkovac Imljani Skender-Vakuf
References