The Una is a border river between Bosnia and Herzegovina and Croatia and a right tributary of the Sava river. It is part of the Black Sea drainage basin, and its watershed has a size of 10,200 km2 (3,900 sq mi), of which 8,080 km2 (3,120 sq mi) belongs to Bosnia and Herzegovina, and 2,120 km2 (820 sq mi) to Croatia. The total length of the river is 212 km (132 mi). The source of the river is located near the village of Donja Suvaja in Croatia, and its mouth is located near the village of Jasenovac, on the border with Bosnia. The largest right tributaries are the Krka, Unac, Krušnica and Sana rivers, and the largest left tributary is the Klokot river. Its longest headwater is the Unac river. The largest and most important city located on the river is Bihać. Other, important cities and towns are Bosanska Krupa, Bosanski Novi and Bosanska Kostajnica. The river is characterized by a multitude of waterfalls, rapids, karst springs and relatively untouched nature. A large part of the upper river is part of the Una National Park.
Ostrovica is a village named after a small river in the Una-Sana Canton of Bosnia and Herzegovina, located on a hill near the town of Kulen Vakuf.
Rogatica is a town and municipality located in eastern Republika Srpska, an entity of Bosnia and Herzegovina. As of 2013, it has a population of 10,723 inhabitants, while the town of Rogatica has a population of 6,855 inhabitants.
Nišići is a village in the municipality of Ilijaš, situated north from Sarajevo, Bosnia and Herzegovina, on a highland karst plateau with a same name.
Strbacki buk waterfall is a 25 m high waterfall on the Una River. It is situated in Croatia and Bosnia and Herzegovina. It is part of Una National Park.
Rekavice is a village in the municipality of Banja Luka, Republika Srpska, Bosnia and Herzegovina. Near the village, on the southern side of the steep slope of the Vrbas canyon. is strategically situated ruined medieval Bosnian castle of Zvečaj.
Veliki Stjenjani is a village in the municipality of Bihać, Bosnia and Herzegovina.
Donji Petrovići is a village in the municipality of Krupa na Uni, part of the Republika Srpska entity of Bosnia and Herzegovina. The village is made up of mostly ethnic Serbs. The closest city to Donji Petrovići is Novi Grad. The population of the village has decreased drastically during the time of the Yugoslav Wars. From the village, there is a great view of Grmec, one of Bosnia's famous mountains.
Vranovina is a village in the municipality of Bosanski Petrovac, Bosnia and Herzegovina.
Malo Tičevo is a village in the municipality of Bosansko Grahovo, Canton 10 of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina.
Zagoni is a village in the municipality of Bratunac, Republika Srpska, Bosnia and Herzegovina.
Brod is a village in the municipality of Brčko, Bosnia and Herzegovina.
Hasanbegovci is a village in the municipality of Glamoč in Canton 10, the Federation of Bosnia and Herzegovina, Bosnia and Herzegovina.
Radovčići is a village in the municipality of Srebrenica, Bosnia and Herzegovina.
Preodačko Lake is an artificial lake of Bosnia and Herzegovina on the Unac River. The Unac River rises beneath Šator mountain, flows through the municipality of Bosansko Grahovo and Drvar and finally meets Una River in Martin Brod. It's created by damming the Unac a kilometer or so from its source in the field called Preodačko Polje, where the river formed a small natural marsh. A few kilometres downstream a larger Župica Lake is created with a constriction of second, bigger dam. Both lakes serve for water supply only. From here the river Unaç flows through town of Drvar, and Drvarsko Polje in the municipality of Drvar, where it enters confines of Una National Park, and after passing through a canyon it meat the Una in town of Martin Brod.
Župica Lake is an artificial lake of Bosnia and Herzegovina on the Unac River. The Unac River rises beneath Šator mountain, flows through the municipality of Drvar and finally meets Una River in Martin Brod. It's dammed to form small Prekajsko Lake and a few kilometers downstream larger Župica Lake, before it reach town of Drvar in the municipality of Drvar.
The Unac is a sinking river in Bosnia and Herzegovina. It rises beneath Šator mountain, flows through the municipality of Drvar and finally meets Una River in Martin Brod. Also runs through two deep and rugged karstic canyons and it is dammed to form small Preodačko Lake and larger Župica Lake, before it reach town of Drvar.
Una National Park was established on 29 May 2008 around the rivers Upper Una River, Krka and the Unac. It is Bosnia and Herzegovina's largest national park. The main purpose of the park is to protect the unspoiled Una river and its tributaries Krka and Unac, which run through it.
The Rmanj Monastery is a Serbian Orthodox monastery dedicated to Saint Nicholas and located in Martin Brod in north-western Bosnia and Herzegovina, at the left bank of the Unac River near its confluence with the Una. The original monastery is dated to the late 15th century, after which it underwent several disasters and having to be rebuilt.
Rmanj is a fortress located near the village of Martin Brod, Bosnia and Herzegovina, originating in the Middle Ages.
Bosnia and Herzegovina 
Una-Sana 
Bihać 
