Rocheuse River

The main watersheds adjacent to the Rocky River are:

• north side: rivière du Malin, Jacques-Cartier River;
• east side: Fragasso Lake, Sautauriski Lake, Montmorency River;
• south side: Fragasso Lake, Sautauriski Lake, Walsh Lake, Rivière à la Chute (Jacques-Cartier River);
• west side: rivière du Malin, Jacques-Cartier River, Rivière Jacques-Cartier Nord-Ouest.

The Rocheuse river originates at the confluence of two mountain streams 780 metres (2,560 ft), located in the unorganized territory of Lac-Jacques-Cartier, in the regional county municipality (MRC) La Côte-de-Beaupré Regional County Municipality.[1] From this confluence, the Rocheuse river flows on 17.5 kilometres (10.9 mi), with a total drop of 223 metres (732 ft), according to the following segments:

• 3.4 kilometres (2.1 mi) to the south, forming a large curve towards the east, to an unidentified stream (coming from the north);
• 3.4 kilometres (2.1 mi) towards the south by forming a first hook towards the west and a second at the end of the segment where the river branches off towards the west before crossing on 0.2 kilometres (0.12 mi) the Bradette Lake (altitude: 721 metres (2,365 ft)) to its mouth;
• 4.2 kilometres (2.6 mi) to the south, forming a few streamers, to a long bay on the eastern shore of Lac des Alliés;
• 2.7 kilometres (1.7 mi) westwards crossing Lac des Alliés (length: 3.0 kilometres (1.9 mi); altitude: 713 metres (2,339 ft)), bypassing a large peninsula attached to the south shore, to the Allies dam built at the mouth of the lake;
• 1.4 kilometres (0.87 mi) westward across a series of rapids at the end of the segment to a bend in the river;
• 2.4 kilometres (1.5 mi) to the north, crossing two long series of rapids, to its mouth.[2]

From the confluence of the Rocky River, the current flows for 4.6 kilometres (2.9 mi) to the southwest, following the course of the rivière du Malin, a deep valley; then on south by the course of the Jacques-Cartier River to the northeast bank of the Saint Lawrence river.[2]

The toponym "rivière Rocheuse" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec.[1]

• Laurentides Wildlife Reserve
• Lac-Jacques-Cartier, a TNO
• La Côte-de-Beaupré Regional County Municipality, a MRC
• Rivière du Malin
• Jacques-Cartier River
• Lac des Alliés
• Fragasso Lake
• Walsh Lake
• List of rivers of Quebec