Kolbäcksån

Kolbäcksån
River
Country	Sweden
Mouth	Mälaren
- coordinates	59°30′30″N 16°15′30″E / 59.50833°N 16.25833°E / 59.50833; 16.25833Coordinates: 59°30′30″N 16°15′30″E / 59.50833°N 16.25833°E / 59.50833; 16.25833
Length	180 km (112 mi)
Basin	3,100 km2 (1,197 sq mi)
Discharge
- average	27 m3/s (953 cu ft/s)
Kolbäcksån flows from Lake Väsman at Ludvika towards Kolbäck and lake Mälaren.

Kolbäcksån is a river located in Bergslagen in the middle of Sweden. It is about 180 kilometres long, arises in the province Dalarna and flows through the province of Västmanland into the Mälaren. The river drains an area of approximately 3,100 km² and has an average discharge of 27 m³/s. The city of Fagersta lies on the river and the Strömsholm Canal follows the river about 100 kilometres.