| Cachisca Lake | |
| Location: | Eeyou Istchee James Bay Regional Government |
| Type: | Natural |
| Inflow: | Outlet of Opataca Lake |
| Pushpin Map: | Quebec |
| Outflow: | Comencho Lake |
| Basin Countries: | Canada |
Cachisca Lake is a body of water in the Broadback River watershed in the Eeyou Istchee James Bay (municipality) area of the Nord-du-Québec, in the province of Quebec, in Canada. This lake is part of the territory of Assinica Wildlife Sanctuary and Turgis Township.
Forestry is the main economic activity of the sector. Recreational tourism activities come second.
The nearest forest road is located south-east of the lake, the road skirting Mount Opémisca from the north; this road joins towards the south the route 113 (connecting Lebel-sur-Quévillon and Chibougamau) and the Canadian National Railway.
The surface of Cachisca Lake is usually frozen from early November to mid-May, however, safe ice movement is generally from mid-November to mid-April.
Cachisca Lake has a length of, a maximum width of and an altitude of . The shape of the lake is narrower towards the North and more flared towards the South where there are several islands and peninsulas.
Lake Cachisca is embedded between Opataca Lake (east) and Assinica Lake (west). Lake Cachisca is located to the south of mountains whose several peaks reach more than : eleven summits to the North et six summits to the West.
The mouth of Lake Cachisca is located at:
The main hydrographic slopes near Cachisca Lake are:
Formerly, this body of water was designated "Lake Capacwachipsca". In 1939, the Quebec Geography Commission formalized this hydronym. Of Cree origin, this hydronym translates an abbreviated form of "Capacwachipsca", which could mean "lake rock in shallow water."[2]
The toponym "Lac Cachisca" was formalized on December 5, 1968, by the Commission de toponymie du Québec, when it was created.[3]