| Sotla / Sutla | |||||||
| Mouth Coordinates: | 45.8645°N 15.6835°W | ||||||
| Subdivision Type1: | Countries | ||||||
| Length: | 88.6km (55.1miles) | ||||||
| Source1 Elevation: | 580m (1,900feet) | ||||||
| Mouth Elevation: | 135m (443feet) | ||||||
| Basin Size: | 584.3km2 | ||||||
| Map: |
| ||||||
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 long and has a watershed area of .
The Sutla flows through the following municipalities:
The hydrological parameters of the Sutla are regularly monitored in Croatia at Zelenjak.[1]
The division of the Sutla/Sotla basin area between Croatia and Slovenia is inconsistent in sources; Croatian sources claim either 343km2 or 455km2,[2] while Slovenian sources claim either 477km2[3] or 451km2.
Kozje Park (Slovene: Slovenian: Kozjanski park), established in 1981 as Trebče Memorial Park (Slovenian: Spominski park Trebče), is located in Slovenian territory west of the Sotla. It covers 206km2 of the landscape of the Kozje Hills (Slovenian: Kozjansko hribovje), including wetlands along the Sotla. It is the habitat of over 120 bird species and of about 950 higher plant species.[4]
The earliest known mention of Sutla was in 1028, as Zontla. The name is pre-Slavic in origin and comes from *Sǫtъla. The root does not have a known meaning.[5]