The Sava is a river in Central and Southeast Europe, a right-bank and the longest tributary of the Danube. It flows through Slovenia, Croatia and along its border with Bosnia and Herzegovina, and finally through Serbia, feeding into the Danube in its capital, Belgrade. The Sava forms the main northern limit of the Balkan Peninsula, and the southern edge of the Pannonian Plain.
The Vrbas is a major river with a length of 250 kilometres (160 mi), in western Bosnia and Herzegovina. It is a right tributary of the Sava river. The city of Banja Luka is located on the river banks.
The Ljubljanica, known in the Middle Ages as the Leybach, is a river in the southern part of the Ljubljana Basin in Slovenia. The capital of Slovenia, Ljubljana, lies on the river. The Ljubljanica rises south of the town of Vrhnika and flows into the Sava River about 10 kilometres (6.2 mi) downstream from Ljubljana. Its largest affluent is the Mali Graben Canal. Including its source affluent the Little Ljubljanica, the river is 41 km (25 mi) in length. The Little Ljubljanica joins the Big Ljubljanica after 1,300 m (4,300 ft) and the river continues its course as the Ljubljanica.
The Tara is a river in Montenegro and Bosnia and Herzegovina. It emerges from the confluence of the Opasnica and Veruša rivers in the Komovi Mountains, part of the Dinaric Alps of Montenegro. The total length is 143 km (89 mi), of which 141 km (88 mi) are in or on the border of Montenegro, it also forms the border between the two countries in several places. The Tara flows from south to north - north-west and converges with the Piva at the Bosnia and Herzegovina and Montenegro border between the villages of Šćepan Polje (Montenegro) and Hum to form the Drina river.
The Sutla (Croatian) or Sotla (Slovene) is a river flowing through Slovenia and Croatia, mostly forming their border. It is a tributary to the Sava, itself a tributary to the Danube. It is 89 kilometres (55 mi) long and has a watershed area of 584 square kilometres (225 sq mi).
The Kupa or Kolpa river, a right tributary of the Sava, forms a natural border between north-west Croatia and southeast Slovenia. It is 297 kilometres long, with its border part having a length of 118 km (73 mi) and the rest located in Croatia.
The Krka is a river in southeastern Slovenia, a right tributary of the Sava. With a length of 94.6 km (58.8 mi), it is the second-longest river flowing in its entirety in Slovenia, following the Savinja.
The Sava Dolinka is a headwater of the Sava River in northwestern Slovenia. The 45 kilometres (28 mi) long Sava Dolinka starts as Nadiža Creek in the Planica Valley under Mount Zadnja Ponca in the Julian Alps, at an elevation of 1222 m, close to the Italian border. The stream goes underground soon after its source and breaks out again after 5 km at an elevation of 842 m in Zelenci, near Kranjska Gora. The Sava Dolinka flows through Kranjska Gora, Gozd Martuljek, Jesenice, between Bled and Breg, and past the town of Lesce. The first in a series of hydroelectric power plants on the river, the Moste Hydro Power Plant, is located near Žirovnica. It merges with the second major headwater of the Sava, the Sava Bohinjka, at Radovljica. Tributaries of the Sava Dolinka include the Triglav Bistrica at Mojstrana and the Radovna, which flows through the Vintgar Gorge near Bled.
The Ćehotina, also known as the Ćeotina, Ćotina or Čehotina, is a 125 kilometres (78 mi) long river in Montenegro and Bosnia and Herzegovina. It is a right bank tributary of the Drina river.
The Dobra is a river located mostly in the Karlovac County in the Republic of Croatia. It is 104.2 kilometres (64.7 mi) long and its basin covers an area of 1,428 square kilometres (551 sq mi). Its name is the feminine form of the Croatian adjective meaning "good" but it is over simplistic folk etymology. The river name probably comes from the Celtic transl. cel – transl. dubrum, dubron meaning ‘water’, Illyrian δυβρις ‘deep’ or Old Slavonic dъbrь also ‘deep’ or ‘valley’.
The Drina is a 346 km (215 mi) long river in the Balkans, 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 which in turn is derived from Greek.
The Krapina is a Croatian river flowing through Krapina-Zagorje County and Zagreb County. It is a tributary to the Sava. The confluence of the Krapina River and the Sava River is near Zaprešić. The Krapina's length is 66.9 km (41.6 mi) and its basin covers an area of 1,237 km2 (478 sq mi).
The Lonja is a river in central Croatia, a left tributary of the Sava. It is 49 kilometres (30 mi) long and its basin covers an area of 4,259 square kilometres (1,644 sq mi).
Glina is a river in central Croatia and Bosnia and Herzegovina, a right tributary of Kupa. It is 112 kilometres (70 mi) long and its basin covers an area of 1,427 square kilometres (551 sq mi).
Orljava is a river in Slavonia, eastern Croatia, a left tributary of Sava. It is 87.6 kilometres (54.4 mi) long and its basin covers an area of 1,618 square kilometres (625 sq mi).
The Spreča is a river of northeastern Bosnia and Herzegovina, a tributary of the Bosna. Its source is located in the village of Snagovo in Zvornik municipality, and it reaches the Bosna at the city of Doboj. A damming of the Spreča in the municipality of Lukavac forms Modrac Lake. The 138.8-kilometre-long (86.2 mi) river also flows through the town of Gračanica.
Sunja is a river in central Croatia, a right tributary of Sava. It is 69 kilometres (43 mi) long and its basin covers an area of 462 square kilometres (178 sq mi).
Ilova is a river in central Croatia, a left tributary of the Sava. It is 104.6 kilometres (65.0 mi) long and its basin covers an area of 1,796 square kilometres (693 sq mi).
Glogovnica is a river in central Croatia, a right tributary of Česma. It is 64.5 kilometres (40.1 mi) long.
