Siak River
| Siak | |
|---|---|
The Siak River as it flows through Pekanbaru
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| Country | Indonesia |
| Physical characteristics | |
| Main source | 0 m (0 ft) |
| River mouth | Malacca Strait |
| Length | 370 km (230 mi) |
The Siak (Sungai Siak) is a river of Riau province, in the east of Sumatra, Indonesia, approximately 370 kilometres in length. The Siak is a blackwater river which owes its brown color to dissolved organic matter (DOM) leached from surrounding, heavily disturbed peat soils; it is heavily polluted, notably by the petroleum industry. It flows through the town of Pekanbaru before emptying into the Strait of Malacca.
Coordinates: 1°14′16″N 102°10′00″E / 1.23778°N 102.16667°E
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