The Yamaska River is a river located in southern Quebec, Canada. It flows for approximately 130 kilometers and is a tributary of the Saint-François River. The river's source is near the town of Yamaska, and it eventually joins the Saint-François River near Drummondville. The Yamaska River is known for its scenic beauty and recreational opportunities, including fishing, kayaking, and hiking along its banks. The surrounding area features various parks and natural reserves, making it a popular destination for outdoor enthusiasts. The river plays an important role in the local ecosystem and community.