The Théodat River is a tributary of Evans Lake, in Regional County Municipality (MRC) of Eeyou Istchee Baie-James (municipality), in the administrative region from Nord-du-Québec, Canadian province of Quebec, in Canada.
The hydrographic slope of the Théodat River is served by the northern route from Matagami passing south-west of the mouth of the river. The surface of the river is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.
Geography The main hydrographic slopes near the Théodat River are: North side: Poles River, La Marte River, Nemiscau River, Le Gardeur Lake; East side: Broadback River, Assinica River; South side: Salamandre River, Broadback River, Nipukatasi River; West side: Evans Lake, Broadback River, Chabinoche River.
The Theodat River originates at the mouth of a little unidentified lake (length: altitude: ). This source is located at: Northeast of the mouth of the Théodat River; Northeast of the mouth of Evans Lake; Northeast of Soscumica Lake; East of the mouth of the Broadback River); Northeast of downtown Matagami.
From its source, the Théodat River flows on according to the following segments:
Upper part of Theodat River (segment of crossing the Assinica Wildlife Sanctuary) southwesterly to the East shore of Hobier Lake; Westward across Hobier Lake (length: ; altitude: ) to its mouth; Northeast, to a creek (coming from the East); West, to the outlet (coming from the South) of an unidentified lake; Westerly, to the discharge (coming from the North) of an unidentified lake; Northwesterly to the dump (coming from the East) of an unidentified lake; to the West, to the East bank of an unidentified lake; to the North, in particular by crossing on an unidentified lake (altitude: ) at the beginning of the segment, up to a small bay on the South shore of the Eastern part of Théodat Lake;
Lower part of Théodat River (segment of ) Westerly across the Théodat Lake (length: ; altitude: ), up to at the dam at its mouth; West through marsh areas, forming a curve to the North and a Southwesterly hook at the end of the segment, to the East shore of an unidentified lake; Westward, crossing at the beginning of the segment on an unidentified lake (altitude: ) up to at the end of a bay on the South shore of Le Gardeur Lake; Northwesterly across Le Gardeur Lake (length: ; altitude: ), up to its mouth; North crossing over a small unidentified lake to its mouth.Distances from the Atlas of Canada (published on the Internet) from the Department of Natural Resources Canada.
The Theodat River flows into the Northeast bay of Evans Lake, facing an island with a length of . Evans Lake is crossed to the North by the Broadback River.
The mouth of Théodat River is located at: East of the mouth of Evans Lake (confluence with the Broadback River); Northeast of Soscumica Lake; East of the mouth of the Broadback River; North of downtown Matagami.
Toponymy The toponym "Théodat River" was formalized on December 5, 1968, at the Commission de toponymie du Québec, i.e. at the creation of this commission
References
See also James Bay Rupert Bay Broadback River, a watercourse Evans Lake, a body of water Théodat Lake, a body of water Assinica Wildlife Sanctuary, a protected area List of rivers of Quebec