Sutla

Sotla / Sutla
Sutla River in Zelenjak, between Klanjec and Kumrovec
Location
Countries
Physical characteristics
Source 
  elevation580 m (1,900 ft)
Mouth 
  location
Sava
  coordinates
45°51′52″N 15°41′01″E / 45.8645°N 15.6835°E / 45.8645; 15.6835
  elevation
135 m (443 ft)
Length88.6 km (55.1 mi)
Basin size584.3 km2 (225.6 sq mi)
Basin features
ProgressionSavaDanubeBlack Sea

The Sutla (Croatian: [sûtla]) or Sotla (Slovene: [ˈsóːtla]) 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).