Tamnava

The Tamnava () is a river in western Serbia. It is a -long left tributary of the Kolubara River and also gives the name to the surrounding region of Tamnava.

== Origin == The Tamnava originates from several small streams from the hill of Konjsko brdo (Cyrillic: Коњско брдо; Horse hill) on the northern slopes of Vlašić mountain, northwest of the town of Valjevo, less than a kilometer away from the source of its major tributary, the Ub River. The Tamnava passes next to the village of Miličinica, makes sharp turn to the northwest along the Vlašić mountain, passes the village of Donje Crniljevo and makes another sharp, elbow turn to the east around the Braznik hill (Cyrillic: Бразник), near the Gradojević village. At the village of Kamenica, the Tamnava makes almost complete circle (triangle, in this case) as it comes just a kilometer away from its own furthermost source. In this early flow, the Tamnava makes the southeastern border of the Pocerina region of western Serbia.