The main hydrographic slopes near Lake Saveney are:

• north side: Berthelot River, Pascagama River;
• east side: Adolphe-Poisson Bay, Hanotaux Bay, Saraana Bay, Du Mâle Lake (Gouin Reservoir);
• south side: Mattawa Bay, Adolphe-Poisson Bay, Bignell Creek, Flapjack River;
• west side: De La Tête Lake, Mégiscane River, Kekek River, Serpent River (Mégiscane River).

Lake Saveney, which is about 5.2 kilometres (3.2 mi) long, collects water from the outlet of small unidentified lakes at the bottom of a small bay in its western part. Saveney Lake has a northern bay (length: 2.6 kilometres (1.6 mi), narrow in shape) that extends in parallel and on the west side of the northern part of Hanotaux Bay. A second bay stretches over (length: 0.9 kilometres (0.56 mi) north-east, towards the Hanotaux Bay. A third bay stretches over 0.9 kilometres (0.56 mi) to the south of the main part of the lake A fourth bay stretches on (length: 1.2 kilometres (0.75 mi) towards the south, constitutes the emissary.

The natural mouth of "Saveney Lake" is located east of the lake at:

• 5.2 kilometres (3.2 mi) south-west of the mouth of the Hanotaux Bay;
• 18.0 kilometres (11.2 mi) south-west of the mouth of the Kaopatinak Pass;
• 39.3 kilometres (24.4 mi) south-west of the village center of Obedjiwan, Quebec which is located on a peninsula on the north shore of Gouin Reservoir;
• 96.4 kilometres (59.9 mi) west of Gouin Dam;
• 135.5 kilometres (84.2 mi) west of the village center of Wemotaci, Quebec (north shore of the Saint-Maurice River);
• 227 kilometres (141 mi) north-west of downtown La Tuque;
• 319 kilometres (198 mi) northwest of the mouth of the Saint-Maurice River (confluence with the St. Lawrence River at Trois-Rivières).[1]

From the artificial mouth of "Saveney Lake", the current flows over 128.1 kilometres (79.6 mi) until Gouin Dam, according to the following segments:

• 5.3 kilometres (3.3 mi) north-east to the mouth of the Hanotaux Bay;
• 40.9 kilometres (25.4 mi) to the North-East crossing the Du Mâle Lake (Gouin Reservoir), then to the East crossing Bourgeois Lake (Gouin Reservoir) and Toussaint Lake to the south of the village of Obedjiwan, Quebec;
• 81.9 kilometres (50.9 mi) to the east, crossing in particular Marmette Lake, then to the South-East crossing notably Brochu Lake, then going across the Kikendatch Bay until Gouin Dam.

From this dam, the current flows along the Saint-Maurice River to Trois-Rivières where it flows onto the North Shore of the St. Lawrence River.

• Saint-Maurice River, a watercourse
• Gouin Reservoir, a body of water
• Du Mâle Lake (Gouin Reservoir), a body of water
• Hanotaux Bay, a body of water
• Adolphe-Poisson Bay, a body of water
• La Tuque, a city
• List of lakes in Canada