Slovenia - length circa 105 km, a right tributary of the river Sava. It has its source approximately 25 km southeast of Ljubljana.
Croatia (Dalmatia) - length circa 73 km, famous for its numerous waterfalls. The river has its source near the Croatia - Bosnia-Herzegovina border in the foot of the Dinara[?] mountain. It flows passing Knin[?] in Inner Dalmatia towards south and it enters the Prokljansko jezero near Skradin. Before its outflow the river forms beautiful and well known the Skradinski Bug waterfalls.