Lac des Arcs (Alberta)

Lac des Arcs is a lake in Alberta, Canada, that forms part of the Bow River.

Lac des Arcs
Tundra swans. A few houses of the hamlet can be seen in the trees on the far shore.
Lac des Arcs
Location	Bighorn No. 8, Alberta
Coordinates	51°03′15″N 115°10′47″W
Primary inflows	Bow River
Primary outflows	Bow River
Basin countries	Canada
Surface elevation	1,320 m (4,330 ft)
Settlements	Lac des Arcs

Located within Alberta's Rockies, the Hamlet of Lac des Arcs is on the lake's southeastern shore, while the Lafarge Exshaw Plant and a limestone quarry lie on the lake's northern shore.

The Trans-Canada Highway runs along the southern shore, and the CPKC Railway main line and Highway 1A follow the northern shore. The lake is also locally known for having a small island with nothing but a picnic bench on it, which is visible from the Trans-Canada Highway.