Vrbanja (river)
The river is fed by numerous tributaries from Vlašić, Čemernica, Borja and Uzlomac mountains. The most significant right-side tributaries are the Bobovica, Lopača, Trnovac,  Crkvenica, Stopanska rijeka, Kruševica, Jezerka, Bosanka, and Jošavka, and the most significant left-side tributaries, the Čudnić, Kovačevića potok, Ćorkovac, Demićka, Sadika, Grabovička rijeka, Duboka river, Vigošća/Vigošta, Cvrcka and Jakotina.