| Berthiaume Lake | |
| Pushpin Map: | Quebec |
| Pushpin Map Caption: | Location in Quebec |
| Location: | Lac-Jacques-Cartier (TNO), La Côte-de-Beaupré Regional County Municipality, Capitale-Nationale |
| Coords: | 47.8119°N -71.8753°W |
| Lake Type: | Natural |
| Inflow: | (clockwise from the mouth) Décharge du lac des Pruches et Robillard, décharge du lac Pérusse, Métascouac River, décharge du lac Dyotte, décharge du lac Atlas. |
| Outflow: | Métascouac River |
| Basin Countries: | Canada |
| Length: | 8.5km (05.3miles) |
| Width: | 1.2km (00.7miles) |
| Area: | NaNkm2 |
| Depth: | NaNm (-2,147,483,648feet) |
| Max-Depth: | NaNm (-2,147,483,648feet) |
| Elevation: | 465m (1,526feet) |
The lac Berthiaume (English: Berthiaume lake) is a freshwater body crossed by the Métascouac River, in the unorganized territory of Lac-Jacques-Cartier, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province from Quebec, to Canada. Lac Berthiaume is located in the northwestern part of the Laurentides Wildlife Reserve.
Lac Berthiaume is located between route 169 (connecting Quebec to Alma) and route 155 (connecting La Tuque and Chambord). Some secondary forest roads serve this area for forestry and recreational tourism activities.[1]
Forestry is the main economic activity in the sector; recreational tourism, second.
The surface of Berthiaume Lake is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally done from mid-December to mid-March.
The main watersheds near Berthiaume Lake are:
Lac Berthiaume has a length of 8.5km (05.3miles), a width of 1.2km (00.7miles) and an altitude of 465m (1,526feet). This lake is mainly fed by the outlet (coming from the west) from Lac des Pruches and Robillard, the outlet (coming from the north) from Lake Pérusse, the Métascouac river (coming from the northeast), the outlet from Lake Dyotte, outlet of Atlas Lake. A kilometer-long strait (width: between 100 and 200 meters) separates the northern and southern parts of the lake. On the east side of Lac Berthiaume, a strip of 4km (02miles) (north–south direction) separates it from Métascouac Lake. In the southern part, a bay stretches to the northwest over 1.1km (00.7miles) and another stretches over 0.5km (00.3miles) to the east.
The mouth of Berthiaume Lake is located at the bottom of a bay, the extreme southeast of the lake, at:
From the mouth of Berthiaume Lake, the current follows the course of:
The toponym "Lac Berthiaume" was formalized on December 5, 1968, by the Commission de toponymie du Québec.[3]