The Yvonne River successively crosses the townships of Marceau, Bressani and Langloiserie. Forestry is the main activity economic sector; recreational tourism activities, second.
The Yvonne River Valley is served by the R1099 forest road (North-South direction) which passes on the west side and by some roads secondary forest managed mainly for logging.
The surface of the Yvonne River is usually frozen from early November to mid-May, however safe ice circulation is usually from mid-November to mid-April.
Geography
The surrounding hydrographic slopes of the Yvonne River are:
The Yvonne River originates at the mouth of Lake Narcissus (length: 1.6 kilometres (0.99 mi); elevation: 411 metres (1,348 ft)) in the Township of Marceau (at the southern limit of the township of Bressani and near the eastern limit of the township of L'Espinay), in Eeyou Istchee Baie-James (municipality).
This source is located at:
9.3 kilometres (5.8 mi) south of the mouth of Yvonne Lake;
24.0 kilometres (14.9 mi) south of the mouth of the Yvonne River (confluence with the Surprise Lake (Roy River);
50.5 kilometres (31.4 mi) south-east of the mouth of Doda Lake;
370 kilometres (230 mi) southeasterly of the mouth of the Nottaway River (confluence with James Bay);
107.3 kilometres (66.7 mi) south of downtown Chibougamau;
46.3 kilometres (28.8 mi) northwest of the village center of Obedjiwan.
From the mouth of Lake Narcissus (the head lake), the Yvonne River flows over 32.3 kilometres (20.1 mi) according to the following segments:
Upper course of the Yvonne River (segment of 13.3 kilometres (8.3 mi))
8.3 kilometres (5.2 mi) towards the North-East, in the canton of Bressani, collecting the waters of the dump (coming from the East) of the Lac des Roches Volcaniques,
to the west shore of Lake Émélie;
1.9 kilometres (1.2 mi) to the north crossing Lake Cécile (length: 2.9 kilometres (1.8 mi); altitude: 391 metres (1,283 ft)), to its mouth;
1.2 kilometres (0.75 mi) northeasterly across Annette Lake (elevation: 391 metres (1,283 ft)) along its entire length to its mouth;
1.9 kilometres (1.2 mi) to the northwest bypassing a peninsula (advancing westward) as it crossed Lake Yvonne (length: 4.9 kilometres (3.0 mi); elevation: 391 metres (1,283 ft)), to its mouth;
Lower River Yvonne (segment of 19.0 kilometres (11.8 mi))
7.1 kilometres (4.4 mi) northeasterly to the confluence of Tusy Lake (from the east);
1.0 kilometre (0.62 mi) towards the west, to the discharge (coming from the South-West) of a set of lakes including Lake Sylvie;
2.1 kilometres (1.3 mi) north, to the line separating the townships of Bressani and Langloiserie;
2.2 kilometres (1.4 mi) north in the township of Langloiserie, to a creek (coming from the southwest) which drains five lakes;
6.6 kilometres (4.1 mi) north crossing through some swamp areas to its mouth.[2]
83.8 kilometres (52.1 mi) south-west of downtown Chibougamau;
57.9 kilometres (36.0 mi) south of the village center of Chapais, Quebec;
67.9 kilometres (42.2 mi) north of the village center of Obedjiwan (located on the north shore of Gouin Reservoir).
361.1 kilometres (224.4 mi) south-east of the mouth of the Nottaway River.
Toponymy
At various times in history, this territory has been occupied by the Attikameks, the Algonquin and the Cree. The term "Yvonne" constitutes a name of French origin.
