Drina

Drina Дрина
The Drina River forms Perućac Lake, Bosnia and Herzegovina looking from mountain Tara in Serbia
Location
Country	Bosnia and Herzegovina, Serbia
Physical characteristics
Source
• location	Bosnia and Herzegovina, between the slopes of Maglić, Pivska planina and Hum mountains (in the area of Šćepan Polje and Hum villages)
Mouth
• location	Sava, at the Serbian-Bosnian border between Crna Bara and Bosanska Rača
• coordinates	43°20′55″N 18°50′22″E / 43.34861°N 18.83944°E / 43.34861; 18.83944
Length	346 km (215 mi) [1]
Basin size	20,320 km2 (7,850 sq mi) [1]
Discharge
• average	from 125 m3/s (4,400 cu ft/s) at the Ćehotina's mouth to 370 m3/s (13,000 cu ft/s) on the Drina's mouth into the Sava
Basin features
Progression	Sava→ Danube→ Black Sea

The Drina (Serbian Cyrillic: Дрина, pronounced [drǐːna]) is a 346 km (215 mi) long river in the Balkans,^[1] which forms a large portion of the border between Bosnia and Herzegovina and Serbia. It is the longest tributary of the Sava River and the longest karst river in the Dinaric Alps which belongs to the Danube River drainage basin. Its name is derived from the Roman name of the river (Latin: Drinus) which in turn is derived from Greek (Ancient Greek: Dreinos) which is derived from the native name of Illyrian origin.^[2]

The Drina originates from the confluence of the rivers Tara and Piva, in the glen between the slopes of the Maglić, Hum and Pivska Planina mountains, between the villages of Šćepan Polje, Montenegro and Hum, Bosnia and Herzegovina.