| Maicasagi Lake | |
|---|---|
 Watershed of Nottaway River | |
  Maicasagi Lake | |
| Location | Baie-James |
| Coordinates | 49°56′44″N 76°39′01″W / 49.94556°N 76.65028°W |
| Type | Natural |
| Primary inflows | Waswanipi River, Chensagi River |
| Primary outflows | Waswanipi River |
| Basin countries | Canada |
| Max. length | 14.7 kilometres (9.1 mi) |
| Max. width | 8.6 kilometres (5.3 mi) |
| Surface elevation | 262 metres (860 ft) |
Lake Maicasagi is a body of freshwater located in the territory of Eeyou Istchee Baie-James (municipality), in the administrative region of Nord-du-Québec, in the province of Quebec, in Canada.
The surface of lake Maicasagi extends mainly into the townships of Johnstone and Urfé; and in the Township of Grandfontaine up the Northwest Bay to the mouth of the Chensagi River.
Forestry is the main economic activity of the sector. Recreational tourism activities come second.
The hydrographic slope of Lake Maicasagi is accessible from the west side by the forest road that separates from the James Bay road from the southwest (coming from Matagami). The other access road is located on the east side and passes on the south side of Goéland Lake (Waswanipi River), and then ascends northward across the Waswanipi River.
The surface of Lake Maicasagi is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.