[1][2] The south shore of La Pêche Lake is just 7.5 kilometres (4.7 mi) north of the Ottawa River.

From its source at La Pêche Lake in the Pontiac municipality, the La Pêche River flows for about 20 kilometres (12 mi) to the east, partly in the Gatineau Park, sometimes in woodlands, agricultural or urban.

La Pêche Lake receives water discharges of several lakes (to the west and north), including: Martin, Serpent, à Guilbeault, Fisher, Trois Monts, Malverson, du Loup and La Loutre.

La Pêche river flows towards the north-east, then east, where it will run along more or less the 366 West Main Road to its mouth.

A textile mill and a sawmill at the same location helped to provide the impetus for the development of a settlement at Wakefield.