Aura River (Finland)

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Aura River
Aurajoki, Turku 2.jpg
Aura River in central Turku
Physical characteristics
 • locationOripää
 • location
Length70 km (43 mi)
Basin size885 km2 (342 sq mi)
 • average7 m3/s (250 cu ft/s)

The Aura River (Finnish Aurajoki; Swedish Aura å) is a river in south-western Finland. Its sources are in Oripää, and it flows through Pöytyä, Aura and Lieto before discharging into the Archipelago Sea in the middle of the city of Turku. The waters of the Aura river are brown. The total length of the river is about 70 kilometres (43 mi), and it contains eleven rapids, the biggest of which is Nautelankoski at Lieto. The reserve tap water for Turku Region is drawn from the Aura, the city's secondary waterworks being situated by the Halinen rapids.[1]

The word "Aura" appears to come from an archaic Swedish word for waterway (aathra, which is still current in the form ådra), but in Finnish it translates as "plough," a name the river lives up to.[2] Situated in an agricultural zone, it is made turbid by surface runoff from nearby farms with eutrophication as the biggest threat. Its condition has been improving since the 1970s and the Aura river is now clean enough to support salmon.

The banks of the river have been inhabited for at least 6,000 years. The area is notable for the cultural heritage in Finland. The archdiocese of Finland has been situated near the river since the thirteenth century.


See also[edit]


  1. ^ "Aurajoki ja Raisionjoki-Ruskonjoki Varsinais-Suomen vesistöt tutuiksi". Varsinais-Suomen ELY-keskus. 2013. Retrieved 17 August 2020.
  2. ^ Kauhanen, Heikki (3 December 2008). "Seitsemän peninkulmaa eläväistä Aurajokea". Turun Sanomat. Retrieved 17 August 2020.

Coordinates: 60°39′44″N 22°35′27″E / 60.66222°N 22.59083°E / 60.66222; 22.59083