| Perhonjoki | |
|---|---|
 | |
| Location | |
| Country | Finland |
| Physical characteristics | |
| Length | 114 km |
Perhonjoki is a river of Finland in Central Ostrobothnia region. It originates in Suomenselkä from the small lakes on the border of the municipalities of Perho, Kyyjärvi and Kivijärvi, and it flows for 114 kilometres (71 mi) into the Gulf of Bothnia. [1]
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63°53′N 23°09′E / 63.883°N 23.150°E