Porvoonjoki
| Porvoonjoki Borgå å | |
|---|---|
| Origin | Salpausselkä |
| Mouth | Gulf of Finland |
| Basin countries | Finland |
| Length | 143 km |
| Source elevation | 68 m |
| Avg. discharge | 1-200 m³/s |
| Basin area | 1 271 km² |
Rapid in Orimattila, Virenoja
Porvoonjoki (Porvoo River, Borgå å in Swedish) is a small river in Finland. The Mediaeval town of Porvoo is situated in the river delta.
Coordinates: 60°23′N 25°40′E / 60.383°N 25.667°E
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