| Ivanhoe River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Ivanhoe 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: | Unnamed lake |
| Source1 Location: | Halsey Township, Sudbury District |
| Source1 Coordinates: | 47.6822°N -83.1825°W |
| Source1 Elevation: | 450m (1,480feet) |
| Mouth: | Groundhog River |
| Mouth Location: | Montcalm Township, Cochrane District |
| Mouth Coordinates: | 48.6742°N -82.1908°W |
| Mouth Elevation: | 262m (860feet) |
| River System: | James Bay drainage basin |
| Tributaries Left: | Paypeeshek River, Shawmere River |
| Tributaries Right: | Muskego River, Midway River, Kinogama River |
The Ivanhoe River is a river in Cochrane District and Sudbury District in Northeastern Ontario, Canada.[1] [2] The river is in the James Bay drainage basin and is a left tributary of the Groundhog River.[3]
The river begins at an unnamed lake in geographic Halsey Township[4] in the Unorganized North Part of Sudbury District, and heads northeast under the Canadian Pacific Railway transcontinental main line — used at this point by Via Rail Sudbury – White River train — between the community of Nemegos to the west and Tophet to the east. It continues northeast through South Ivanhoe Lake and Halsey Lake, takes in the right tributary Kinogama River and reaches Ivanhoe Lake, substantially encompassed by Ivanhoe Lake Provincial Park.
The river has two outlets from Ivanhoe Lake: Ivanhoe River (Old Channel), the left (west) channel at the northwest of the lake, and Ivanhoe River (New Channel), the right channel (east) at the northeast.
The two channels then recombine, and the river heads north, again under the CNR line, takes in the left tributary Shawmere River, passes through The Chutes, a natural water chute, and passes into the Unorganized North Part of Cochrane District at the geographic Nova Township.[5] It turns northeast, takes in the left tributary Paypeeshek River, and reaches its mouth at the Groundhog River in geographic Montcalm Township;[6] the Groundhog River flows via the Mattagami River and Moose River to James Bay.
Two small hydroelectric generating stations with associated dams and works were proposed by Xeneca Power Development for sites at The Chutes and 30km (20miles) downstream at Third Falls. The two generating stations were proposed to have a capacity of 8.7 MW and the projects received feed-in-tariff contracts from the Ontario Power Authority.[7]
Actions taken by the Ontario Rivers Alliance and its members led to the termination of 19 Feed-in-Tariff (FIT) Contracts. The Chutes and Third Falls on the Ivanhoe River were protected from development. 10 Ontario rivers were protected in all: Matawin, Vermilion, Petawawa, Wanapitei, Blanche, Ivanhoe, Frederick House, Kapuskasing, Larder, and Serpent Rivers.[8]
Two channels recombine
Bifurcation from Ivanhoe Lake into Ivanhoe River (Old Channel) and Ivanhoe River (New Channel)