The Quenonisca Lake is a freshwater body of the municipality of Eeyou Istchee Baie-James, in the administrative region of Nord-du-Québec, Quebec, Canada. The northern part of the lake is crossed to the West by the Broadback River. Forestry is the main economic activity of the sector. Recreational tourism activities come second with an upstream navigable water body including the Broadback River and the Nipukatasi River. The southern portion of the Quenonisca Lake hydrographic slope is accessible via a forest road from the west, connecting the road going North. The surface of Quénonisca Lake is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.
Geography
Quénonisca Lake is part of a group of lakes in the same area, which are formed in length, more or less parallel to each other, including the Salamander Lake, the Rocher Lake crossed by the Nipukatasi River and Amisquioumisca Lake. Quenonisca Lake has a length of, a width of James Bay, an elevation of and an area of. Lake Quenonisca is mainly fed by the outlet of Lake Opataouaga, coming from the South and discharging at the bottom of a bay on the South-East shore; and by the dump of La Peupleraie lake pouring on the North-West shore. In addition, the Broadback River crosses the northern part of Quenonisca Lake to the west. Quenonisca Lake is made up of 49 islands, one at its mouth and another in length near the southern part of Salamander Lake. Areas around the lake have a generally level topography, except for:
North-east side, near the mouth of the lake where the summit of Mount Scott rises to at from the southeast shore;
South side, where there are several mountains.
Geology
The "Intrusive Rocher-Quenonisca Suite" includes the Whitefish Intrusion that outcrops mainly between lakes Quenonisca and Rocher, Rocher Intrusion and another small peridotite intrusion of less than in diameter that cuts the paragneisses of the "Rock Complex" and the migmatitic gneisses of the "Bétulaie Complex" in the area of Rocher Lake. This convert was originally described as the "Rock-Kenonisca Massif" by Franconi in his report on the mapping of the western half of the Frotet-Evans volcano-sedimentary band. It was renamed "Rocher-Quénonisca Intrusive Suite" by Brisson when mapping the Lac Rocher region. The addition of the Whitefish Intrusion and the Rock Intrusion as lithodemes in the Rocher-Quénonisca Intrusive Suite is proposed as a result of Leclerc and Caron-Côté field work and compilation..
