| Chapleau River | |
| Name Etymology: | Named for Joseph-Adolphe Chapleau |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Chapleau River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | Districts |
| Source1: | Chapleau Lake |
| Source1 Location: | Sudbury District |
| Source1 Coordinates: | 47.8864°N -83.3536°W |
| Source1 Elevation: | 427m (1,401feet) |
| Mouth: | Kapuskasing River |
| Mouth Location: | Kapuskasing Township, Algoma District |
| Mouth Coordinates: | 48.4731°N -82.9606°W |
| Mouth Elevation: | 312m (1,024feet) |
| River System: | James Bay drainage basin |
| Tributaries Left: | Makonie River, Swanson River |
The Chapleau River is a river in Algoma District and Sudbury District in northeastern Ontario, Canada.[1] It is in the James Bay drainage basin, begins at Chapleau Lake and is the main tributary of Kapuskasing Lake.
The community of Chapleau was created as a divisional point during the construction of the Canadian Pacific Railway Transcontinental railway and was named for Joseph-Adolphe Chapleau. Both the lake upon which the community is located and the river which flows from the lake took on the same name.
The river begins at the north end of Chapleau Lake in Subury District, and flows north through Henderson Lake before taking in the left tributary Racine Creek. it continues north to Schewabik Lake where it takes in the left tributary Swanson River. It continues northeast, then north, takes in the left tributary Makonie River, enters Algoma District, and reaches its mouth at Kapuskasing Lake. Kapuskasing Lake flows via the Kapuskasing River, the Mattagami River and the Moose River to James Bay.
Chapleau-Nemegosenda River Provincial Park is a waterway park operated by Ontario Parks that includes the Chapleau River from the entry of the tributary Racine Creek to the river mouth at Kapuskasing Lake.[2]