The Matapedia River () is a river in the Matapedia Valley in the province of Quebec, Canada. It runs on from Matapedia Lake down to the village of Matapédia where it empties into the left bank of Restigouche River on the provincial border of New Brunswick. This freshwater course forms a natural border between the administrative regions of Bas-Saint-Laurent and Gaspésie-Îles-de-la-Madeleine. The river is a North South divide in the Notre Dame Mountains that characterize the relief of the Gaspé Peninsula. The Matapedia River basin drains an area of about . Matapedia River is often called the Salmon Capital . From the South side of Matapedia Lake and going to the South, the route 132 along the river goes on its entire length by the East bank. The Canadian National Railway passes South of Matapedia Lake continues on the West bank of the river in Causapscal where the bridge at South of the village made the railway cross on the East bank. The track then continues South on ; then passes again in the West Bank via the railway bridge located at North of the confluence of the creek Doyle. The railway then rest on the West bank up to the railway bridge at the confluence of the . From there, the last railway segment passes through the Eastern shore, up to the confluence of the Matapedia River. Course Matapedia Lake becomes Matapedia River at Amqui, where it is a meander river for a distance of approximately . It widens into an elongated lake 1 kilometre wide and long at Lac-au-Saumon before narrowing back to a river below the dam in the village of Causapscal. There, it joins with a major tributary, the Causapscal River, forming a pool that is renowned for its Atlantic salmon. From there, the river continues on until the New Brunswick border, where it empties into the Restigouche River. The Lake Matapedia (length: ; height: ) is the head of water of the Matapedia River. This water plan is located in the municipality Matapedia Lake, in Notre Dame Mountains. Its mouth is located in the Southeast to the height of a covered bridge. The mouth of the Lake Matapedia is located at: Northwest from the confluence of the Matapedia River; Southeast of South Coastal Gulf of Saint Lawrence; South of the bridge route 132 that spans on the Matane River. From the mouth of the Matapedia