Piva river

Piva
River
1,4 km of the Piva River flow through Bosnia and Herzegovina, before finally meets the Tara and create the Drina River.
Countries	Bosnia and Herzegovina, Montenegro
Landmark	Bridge over the Piva
Building	Mratinje Dam
Mouth	Drina
Length	34 km (21 mi), South-North
Width	0,002 km (1 mi), East-West
Geology	Limestone

The Piva (Bosnian: Piva, Serbian Cyrillic: Пива, pronounced [pîʋa]) is a river in Montenegro and Bosnia and Herzegovina, shorter headwater of the Drina river, which it forms with the Tara river on the border with Bosnia and Herzegovina.

The Piva springs from the Sinjac (Сињац) spring on Golija mountain, near the Piva Monastery (also called Vrelo Pive; Cyrillic: Врело Пиве; Well of Piva). Before the artificial Lake Piva was formed, the water from the well rushed into the river Komarnica (Cyrillic: Комарница) thus creating the Piva river for the next 34 km. However, Komarnica is part of an 86 km long river system (Tušina–Bukovica–Bijela–Komarnica), so measured from the source of the Tušina river (Cyrillic: Тушина), the Piva, nicknamed 'the river with five names', is 120 km long.

The Tušina originates from the mountain Sinjajevina in the Uskoci region of central Montenegro, just few kilometers away from the source of another important Montenegrin river, Morača. The river flows to the west, between the Sinjajevina and Lola mountains, next to the villages of Krnja Jela, Bare, Boan and Tušina. It receives from the north the Bukovica river (Cyrillic: Буковица), and continues further under this name. After the river passes the regional center of Šavnik and the villages of Gradac and Pridvorica in the region of Drobnjaci, the stream receives from the north the Komarnica and takes its name.

The Komarnica continues between the mountains of Vojnik and Treskavac, in an almost uninhabited area (village of Duži) and enters the high Piva Pleateau, where it turns north (almost all of the Komarnica's course is flooded by the reservoir of the Lake Piva), receives from the right outflow of the Piva well and enters the deep Piva canyon.