This body of water extends in the townships of Rohault, Robert and Crisafy. Forestry is the main economic activity of the sector. Recreational tourism activities come second.
The watershed of Lake Gabriel is accessible via the R1032 forest road (North-South direction) which passes on the west side of the lake. The surface of Lake Gabriel is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.
Gabriel Lake has a length of 17.6 kilometres (10.9 mi), a maximum width of 5.1 kilometres (3.2 mi) and an altitude of 392 metres (1,286 ft). This lake has several bays, peninsulas and islands. The Gabriel Lake includes a peninsula attached to the South shore stretching on 3.6 kilometres (2.2 mi) towards the north meaning towards the center of the lake; the bottom of this bay receives the waters of the "Lac à l'Eau Rouge", located in the South. Another peninsula attached to the east bank advances towards the center of the lake, separating the lake in two, facing the opening of the bay stretching north-west to the mouth of the lake.