The Aavoja is a long

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

Anija Parish Anija Parish ( et, Anija vald) is a rural municipality in Harju County, Estonia, consisting of 33 settlements. The parish has a population of 6274 and covers an area of . The administrative centre of the municipality is Kehra. The municipality a ...

Harju County Harju County ( et, Harju maakond or ''Harjumaa''), is one of the fifteen counties of Estonia. It is situated in Northern Estonia, on the southern coast of the Gulf of Finland, and borders Lääne-Viru County to the east, Järva County to the sou ...

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

that flows into

Jägala river Jägala may refer to: * Jägala, Estonia *Jägala River, a river which runs through Jägala **Jägala Waterfall, a waterfall along the river *Jägala concentration camp, a Nazi concentration camp **Kalevi-Liiva Kalevi-Liiva are sand dunes in Jõe ...

near

Kehra Kehra is a town in Anija Parish, Harju County, Estonia, most known for its pulp and paper mill. The town is situated on the banks of the Jägala river, and has a station on the Tallinn-Narva railway. As of January 1, 2021, the town had a popu ...

. The current source is located in Pillapalu village, just south of Koitjärve Bog. The upstream part of the river was dug in the 1930s to drain

Aguparra Bog ''This is list of major wetlands (including bogs) in Estonia. The list is incomplete.'' References {{Europe topic, List of wetlands of Waterfalls Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic S ...

. Väike-Aavoja and Aavoja reservoirs are located on the river. The river is part of

Tallinn water supply system Tallinn water supply system is a water supply system that provides potable water to Estonia's capital city Tallinn. 90% of Tallinn's potable water is produced from the surface water. The heart of the system Ülemiste Water Treatment Plant is lo ...

. The basin area of the river is .

References

Rivers of Estonia Anija Parish Landforms of Harju County {{Estonia-river-stub