Lake of Two Mountains

Lake Widening of the Ottawa River near Montreal

At the mouth of the Ottawa River near Montreal, the Lake of Two Mountains (Lac des Deux Montagnes) provides boating, shoreline parks and island access; residents and visitors use it for sailing and day outings.

Lac des Deux Montagnes (Lake of Two Mountains) is a broad widening of the Ottawa River in southwestern Quebec, Canada, located at the western end of the Island of Montreal and forming part of the St. Lawrence watershed. It is a notable local waterbody used for recreation and shoreline communities.

The shoreline hosts marinas, municipal parks and small towns that provide access for boating, angling and birdwatching. Several promenades and boat launches are located around the lake enabling short excursions and waterfront views.

The lake is a natural widening of the Ottawa River that has been used for transport, fishing and local commerce since colonial times. Its shores developed with villages and seasonal resort facilities over the 19th and 20th centuries.

Geographically it sits immediately west of the Island of Montreal in the Vaudreuil-Soulanges region of Quebec, within commuting distance of the Montreal metropolitan area.

How to Get to Lake of Two Mountains #

Transit + Drive: Accessible from Montreal via Autoroute 40 toward Vaudreuil-Dorion, or by commuter rail to Vaudreuil or Hudson with short local transfers. Driving offers the most flexibility to explore lakeside parks and small towns.

Tips for Visiting Lake of Two Mountains #

Take the commuter rail or drive from Montreal; the lake sits on the Ottawa River west of Montreal's metropolitan area.
Cycle routes and riverfront trails in Île-Perrot and Vaudreuil-Soulanges provide scenic approaches to the lake.
Bring birding gear-migrant and waterfowl species are common, especially in spring and autumn.