Rivière à Mars
| Rivière à Mars | ||
 Barrage de la Rivière-à-Mars - weir with fish ladder in La Baie |
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| Data | ||
| location | Saguenay – Lac-Saint-Jean in Québec (Canada) | |
| River system | Saint Lawrence River | |
| Drain over | Saguenay Fjord → Saint Lawrence River → Atlantic Ocean | |
| source |
Laurentine Mountains 47 ° 44 ′ 43 " N , 70 ° 57 ′ 48" W. |
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| Source height | approx. 820 m | |
| muzzle | into the Baie des Ha! Ha! ( Saguenay Fjord ) Coordinates: 48 ° 20 ′ 9 " N , 70 ° 52 ′ 45" W 48 ° 20 ′ 9 " N , 70 ° 52 ′ 45" W
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| length | 129 km | |
| Catchment area | 660 km² | |
| Drain |
MQ |
14 m³ / s |
| Left tributaries | Rivière à Mars Nord-Ouest | |
| Big cities | Saguenay | |
 Canyon de la rivière à Mars near La Baie |
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The Rivière à Mars is a tributary of the Saguenay Fjord in the administrative region Saguenay – Lac-Saint-Jean in the eastern part of the Canadian province of Quebec .
The Rivière à Mars has its source in the Laurentine Mountains in the Réserve fauniqe des Laurentides reserve . From there it flows mainly in a northerly direction. It takes up the Rivière à Mars Nord-Ouest on the left. Shortly before reaching the town of La Baie, which is incorporated by Saguenay, it flows through a 700 m long gorge. It then turns to east-northeast, flows through the center of La Baie and finally flows into the Bay of Ha! On the south bank of the Saguenay Fjord . Ha! . The Rivière à Mars has a length of 129 km. It drains an area of 660 km². Its catchment area borders on that of the Rivière Ha! Ha! , which is also in the Baie des Ha! Ha! flows out. To the west is the catchment area of the Rivière du Moulin , which flows into the Rivière Saguenay in Chicoutimi . The mean discharge of the Rivière à Mars is 14 m³ / s.
The fish fauna of the Rivière à Mars include Atlantic salmon and brook trout .
