Una (river)
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Una Уна |
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 Štrbački Buk waterfall south of Bihać |
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| Data | ||
| location | Bosnia and Herzegovina , Croatia | |
| River system | Danube | |
| Drain over | Save → Danube → Black Sea | |
| source | near Donja Suvaja 44 ° 17 ′ 49 ″ N , 16 ° 8 ′ 11 ″ E |
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| Source height | 520 m. i. J. | |
| muzzle | at Jasenovac in the Save coordinates: 45 ° 16 ′ 12 ″ N , 16 ° 55 ′ 5 ″ E 45 ° 16 ′ 12 ″ N , 16 ° 55 ′ 5 ″ E |
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| Mouth height | 94 m. i. J. | |
| Height difference | 426 m | |
| Bottom slope | 2 ‰ | |
| length | 212 km | |
| Catchment area | 9368 km² | |
| Drain |
MQ |
202 m³ / s |
| Right tributaries | Unac , Sana | |
| Big cities | Bihać | |
| Medium-sized cities | Bosanska Krupa , Bosanska Dubica | |
| Small towns | Novi Grad | |
| Navigable | from Dubica (15 km) | |
 Confluence of the Una and Unac in Martin Brod |
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The Una (outdated also Unna , Serbian - Cyrillic Уна ) is a right tributary of the Save in northwestern Bosnia and Herzegovina . It rises near Donja Suvaja in Croatia on the border with Bosnia and flows into the Sava at Jasenovac . The Una is 212 kilometers long from the source ( 520 m. In the year ) to the confluence with the Save ( 94 m. In the year ).
The river forms the historical and present-day border between Bosnia and Croatia over long stretches. Important tributaries are the Unac , which flows into the Una at Martin Brod , and the Sana , which flows into it at Novi Grad . Larger towns on the Una are Bihać , Bosanska Krupa , Novi Grad and Kozarska Dubica .
The Una flows through kilometers of gorges between Bihać and Bosanska Krupa; Above Bihać there are numerous rapids and waterfalls in the Una National Park . The highest of them is the Štrbački Buk southwest of Ripač .
The river Una is very rich in fish with 28 different species. There are also numerous other animals such as otters, mussels, crayfish, turtles and some species of birds.
A peculiarity that only exists in this form in the Una are limestone formations, called Sedra . These are caused by the high lime content of the water and form real cascades . The Una is popular for canoeing and rafting tours .
Hydrology
With an average discharge rate (MQ) of 202 m³ / s at the mouth, the Una ranks fourth among the major rivers in Bosnia-Herzegovina after the Save, Neretva and Drina . Its catchment area has an area of 9368 km² and is mostly in Bosnia and the smaller part in Croatia.
The Una near Kostela in Bosnia and Herzegovina
The Una at Kozarska Dubica
