Attawapiskat River
| Attawapiskat River | |
| Name origin: From the Swampy Cree (Omushkegowuk) chat-a-wa-pis-shkag | |
| Country | Canada |
|---|---|
| Province | Ontario |
| Region | Northwestern Ontario |
| District | Kenora |
| Part of | James Bay drainage basin |
| Tributaries | |
| - left | North Channel, Muketei River |
| - right | Missisa River, Streatfeild River |
| Source | Attawapiskat Lake |
| - elevation | 241 m (791 ft) |
| - coordinates | 52°09′32″N 87°35′45″W / 52.15889°N 87.59583°W |
| Mouth | Akimiski Strait, James Bay |
| - elevation | 0 m (0 ft) |
| - coordinates | 52°58′00″N 82°15′40″W / 52.96667°N 82.26111°WCoordinates: 52°58′00″N 82°15′40″W / 52.96667°N 82.26111°W |
| Length | 748 km (465 mi) |
| Basin | 50,500 km2 (19,498 sq mi) |
| Discharge | |
| - average | 626 m3/s (22,107 cu ft/s) |
  Location of the mouth of the Attawapiskat River in Ontario.
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The Attawapiskat River is a river in Kenora District in northwestern Ontario, Canada, that flows east from Attawapiskat Lake to James Bay.
The Attawapiskat River travels a distance of 748 kilometres (465 mi), and has a drainage area of 50,500 square kilometres (19,498 sq mi).
The source of the river is Attawapiskat Lake at an elevation of 241 metres (791 ft). The main rivers flowing into the lake that are thus part of the Attawapiskat River drainage basin are the Marten-Drinking River, the Otoskwin River and the Pineimuta River.
There are two outflows from the Attawapiskat Lake into the Attawapiskat River: a southern and a northern channel. The southern channel is named by the Atlas of Canada as the Attawapiskat River, and is the source location listed in the Infobox at right. The northern channel is named by the Atlas of Canada as the North Channel, and is the more easily navigated route for canoeing. The North Channel outflow from Attawapiskat Lake is at 52°11′35″N 87°28′35″W / 52.19306°N 87.47639°W and consists of two short streams that lead into Windsor Lake. The elevation of the river drops significantly along these two outflow channels, descending from the higher ground of the Canadian Shield to the flatter and more boggy Hudson Bay Lowlands. After a series of rapids, the North Channel rejoins the Attawapiskat River (the southern channel) at 52°06′04″N 87°06′07″W / 52.10111°N 87.10194°W at an elevation of 210 metres (689 ft).
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