Kruševica is the strongest right tributary of Vrbanja river in central Bosnia. It rises from two streams (Vilenski and Grebenski potok = Fairy’s and Reefs stream) whose source on the northeast slopes of the Očauš Mountain (at around 950 above sea level). The source is exposed to the Borja Mountain. On geographic maps as Kruševica is often marked an other river (Bobovica), whose estuary is around 20 miles upstream. Kruševica flows through Maslovare, and into the Vrbanja river which flows in the Obodnik, where the local road for Šiprage exits from the main road M-4 (Banja Luka – Doboj ).