| Rivière de l'Esturgeon | |
| Source1 Location: | Saint-Isidore |
| Mouth Location: | Sainte-Martine |
| Subdivision Type1: | Countries |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Provinces and territories of Canada |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Administrative region |
| Subdivision Name3: | Montérégie |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Beauharnois-Salaberry Regional County Municipality, Roussillon Regional County Municipality |
| Length: | 14.2km (08.8miles) |
| Source1 Elevation: | 48m (157feet) |
| Mouth Elevation: | 38m (125feet) |
| Basin Size: | NaNkm2 |
| Tributaries Left: | (upstream) Two unidentified streams, Large Saint-Rémi stream, unidentified stream, discharge from a small lake, Noire River, Cordon stream. |
| Tributaries Right: | (upstream) Poupart discharge. |
The rivière de l'Esturgeon (English: Sturgeon River) is a tributary of the Châteauguay River, flowing on the south shore of the Saint Lawrence River, in the administrative region of Montérégie, in the province of Quebec, in Canada. This river flows through the following municipalities:
The lower part of the course of this river is accessible by the Saint-Jean-Baptiste road and the chemin du rang Double. The upper part is mainly accessible by the chemin du rang Saint-Régis.
The surface of the Esturgeon River (except the rapids areas) is generally frozen from mid-December to the end of March; however, safe circulation on the ice is generally done from the end of December to the beginning of March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
The Esturgeon River rises at the confluence of two agricultural streams. This confluence is located south of the village center of Saint-Isidore, to the East of the course of the Châteauguay River, at north-east of the confluence of the Esturgeon river and the Châteauguay river, at southeast of the mouth of the Châteauguay river.
From its source, the current of the Esturgeon river descends on, with a drop of, according to the following segments:
The confluence of the Esturgeon river is located downstream of the dam on the Châteauguay river. From its mouth, the current follows on the course of the Châteauguay river, which flows on the south bank of the St. Lawrence River.
The toponym "rivière de l'Esturgeon" was formalized on March 3, 1993, at the Commission de toponymie du Québec.[2]