The lac des Trois Caribous is the main body of water on the slope of the rivière aux Castors Noirs, located in Haute-Batiscanie in the unorganized territory of Lac-Croche, in the La Jacques-Cartier Regional County Municipality, in the administrative region of Capitale-Nationale, in Quebec, in Canada.

[1][2] The surface of Lac des Trois Caribous is generally frozen from the beginning of December to the end of March; however, safe circulation on the ice is generally from late December to early March.

[1] This landlocked lake enclosed between the mountains looks like a boomerang open to the west.

[1] From the mouth of this lake, the current crosses part of Lac de Travers to the north, then descends on 8.1 kilometres (5.0 mi) following the course of the rivière aux Castors Noirs, in particular crossing the lac aux Biscuits.

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