| Oskondaga River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Oskondaga River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Thunder Bay |
| Source1: | Unnamed lake |
| Source1 Location: | Golding Township |
| Source1 Coordinates: | 48.8336°N -89.9042°W |
| Source1 Elevation: | 488m (1,601feet) |
| Mouth: | Shebandowan River |
| Mouth Location: | Dawson Road Lots Township |
| Mouth Coordinates: | 48.5933°N -89.9058°W |
| Mouth Elevation: | 397m (1,302feet) |
| River System: | Great Lakes Basin |
| Tributaries Left: | East Oskondaga River |
The Oskondaga River is a river in Thunder Bay District in Northwestern Ontario, Canada.[1] It is in the Great Lakes Basin and is a left tributary of the Shebandowan River. The river valley is paralleled by Ontario Highway 17, at this point part of the Trans-Canada Highway; and by both the Canadian Pacific Railway transcontinental main line, still in operation, and the Canadian National Railway Graham Subdivision main line, originally built as part of the National Transcontinental Railway, now abandoned.
The river begins at an unnamed lake in geographic Golding Township, just north of the community of Raith,[2] at the watershed divide between the Atlantic Ocean and Arctic Ocean drainage basins.[3] [4] It heads southeast, then south, enters geographic Goldie Township,[5] and takes in the left tributary East Oskondaga River. The river continues south into geographic Dawson Road Lots Township,[6] flows under Ontario Highway 17 and the concurrent Ontario Highway 11 at the community of Shabaqua Corners,[7] and reaches its mouth at the Shebandowan River. The Shebandowan River flows via the Matawin River and the Kaministiquia River to Lake Superior.