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| Yamachiche River Rivière Yamachiche | |
|---|---|
 Yamachiche River at its mouth on North shore of Lake Saint-Pierre | |
| Location | |
| Country | Canada |
| Province | Quebec |
| Region | Mauricie |
| Physical characteristics | |
| Source | Lac à la Perchaude |
| • location | Saint-Élie-de-Caxton, Quebec, Canada |
| • coordinates | 46°31′07″N 72°57′49″W / 46.51861°N 72.96361°W |
| • elevation | 175 m (574 ft) |
| Mouth | Lake Saint-Pierre |
• location | Yamachiche, Mauricie, Quebec, Canada |
• coordinates | 46°09′48″N 73°01′06″W / 46.16333°N 73.01833°W |
• elevation | 5 m (16 ft) |
| Length | 45 km (28 mi) |
| Basin size | 266 km2 (103 sq mi) |
| Discharge | |
| • location | Yamachiche |
The Yamachiche River is a river located on the north shore of Lake Saint-Pierre in the Maskinongé Regional County Municipality, in the administrative region of Mauricie, in Quebec, in Canada. It originates in the Mastigouche Wildlife Reserve.
The Yamachiche River flows mostly in a wooded area north of Charette, and then generally in an agricultural environment on the rest of its course.