| Rivière de Chicago | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Capitale-Nationale |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Charlevoix Regional County Municipality and Charlevoix-Est |
| Subdivision Type5: | Unorganized territory and municipality |
| Subdivision Name5: | La Malbaie, Saint-Hilarion and Notre-Dame-des-Monts |
| Length: | 9.6km (06miles) |
| Source1: | Prime Lake |
| Source1 Location: | La Malbaie |
| Source1 Coordinates: | 47.6154°N -70.3764°W |
| Source1 Elevation: | 339m (1,112feet) |
| Mouth: | Rivière du Gouffre |
| Mouth Location: | Notre-Dame-des-Monts |
| Mouth Coordinates: | 47.6553°N 70.44°W |
| Mouth Elevation: | 208m (682feet) |
| Tributaries Left: | (from the mouth) Two streams, discharge from a small lake, three streams. |
| Tributaries Right: | (from the mouth) Hot stream, stream, discharge from a small lake, stream, discharge from a small lake, discharge from a small lake, stream. |
The Chicago River is a tributary of the east bank of the middle part of the Rivière du Gouffre, flowing in the administrative region of Capitale-Nationale, in the province from Quebec, to Canada. The course of this river flows through the regional county municipalities (MRCs) of:
The lower part of this valley is served by a forest road for the needs of forestry. The intermediate part is served by chemin du rang Sainte-Philomène and chemin du rang de Chicago Est. The upper part is served by route 138. Agriculture and forestry are the main economic activities in this valley.
The surface of the Chicago River is generally frozen from the beginning of December until the beginning of April; however, safe circulation on the ice is generally done from mid-December to the end of March. The water level of the river varies with the seasons and the precipitation; the spring flood generally occurs in April.
The Chicago River originates from Lac des Brûlés (length: ; altitude:), surrounded by an agricultural and forestry area and located to the south- west of the hamlet La Gadelle, and at the western limit of the territory of the town of La Malbaie. This lake is located southwest of the Montagne de Saint-Jean-Baptiste and the Montagne de la Fée. The mouth of Lac des Brûlés is located at the bottom of the western bay of the lake, either:
From Lac des Brûlés, the course of the Chicago river descends on in a generally deep valley, with a drop of, according to the following segments:
The Chicago river flows in a river loop on the east bank of the Gouffre river, in the municipality of Notre-Dame-des-Monts. This mouth is located at:
From the mouth of the Chicago River, the current descends on with a drop of following the course of the Gouffre River which flows in Baie-Saint-Paul in the St. Lawrence River.[1]
This toponymic designation is linked to the name of the range of Chicago that crosses the course of the river. This designation is based on the fact that the first dealers of this rank were French Canadians who emigrated to the Chicago region in the United States during the second half of the 19th century, to work there, but would have experienced certain setbacks. They would then have returned to settle north of Saint-Hilarion. The emigration of Quebecers to the neighboring country occurred after the canonical erection of the parish of Saint-Hilarion-de-Settrington in 1860. Variants: Le Gros Ruisseau; Lac des Brûlés discharge.[2]
The toponym "Chicago River" was formalized on February 25, 1976 at the Place Names Bank of the Commission de toponymie du Québec.[3]