Saint-Étienne-de-Beauharnois, Quebec

Route 236 is a two-lane east/west highway on the south shore of the Saint Lawrence River in the Montérégie region of Quebec, Canada. Its western terminus is in Saint-Stanislas-de-Kostka at the junction of Route 132 and the eastern terminus is at the junction of Route 132 again, in Beauharnois. Up until the 1980s, Route 236 also used to extend further west, with an additional stretch between Sainte-Barbe and the hamlet of Cazaville, part of Saint-Anicet.

The Beauharnois Canal is located in southwestern Quebec, Canada. The canal is part of the Saint Lawrence Seaway. Located in Beauharnois-Salaberry Regional County Municipality within the cities of Salaberry-de-Valleyfield, Beauharnois, Saint-Louis-de-Gonzague, and Saint-Stanislas-de-Kostka, the canal connects Lake Saint-Francis to the west (upstream) with Lake Saint-Louis to the northeast (downstream), bypassing a series of rapids on the Saint Lawrence River.

Châteauguay HVDC-back-to-back station is the largest high-voltage direct current (HVDC) back-to-back converter station in North America. Situated near Châteauguay, on the South Shore of Montreal, Quebec, it is an important plant for power exchange between Hydro-Québec and New York Power Authority (NYPA).

The Melocheville Tunnel is a tunnel connecting Beauharnois and Melocheville in Quebec, Canada. It is a segment of Route 132 located near the Beauharnois generating station. The tunnel measures 227.6 m. Until 1991, it was called the Beauharnois Tunnel.

The Beauharnois generating station is a run-of-the-river hydroelectric power station along the Saint Lawrence Seaway on the Saint Lawrence River, in Quebec, Canada. The station was built in three phases, and comprises 36 turbines, capable of generating up to 1,903 MW of electrical power. Constructions on the facility began in 1930 and was completed in 1961.The facility was designated a National Historic Site of Canada in 1990.

Beauharnois-Salaberry is a regional county municipality in the Montérégie region of Quebec, Canada. Its seat is Beauharnois.

The La Guerre River is a tributary of the south shore of lake Saint-François which is crossed to the east by the Saint Lawrence river. This river flows through the municipalities of Sainte-Barbe (MRC Beauharnois-Salaberry) and Saint-Anicet, in the Le Haut-Saint-Laurent Regional County Municipality, in the administrative region of Montérégie, in Quebec, in Canada.

The Saint-Louis river is a tributary of the south shore of the Saint Lawrence River. This river flows through the municipalities of Sainte-Barbe, Saint-Stanislas-de-Kostka, Saint-Louis-de-Gonzague, Saint-Étienne-de-Beauharnois and Beauharnois, in the Beauharnois-Salaberry Regional County Municipality, in the administrative region of Montérégie, in the Southwest of province of Quebec, in Canada.

The Battle of Beauharnois was fought on November 10, 1838, between Lower Canada loyalists and Patriote rebels, after 500 armed men had converged on Beauharnois, on November 3–4, overtaking the seigneurial manor.The seigneury of Beauharnois belonged to the Ellice family, having, in 1796, purchased it from Michel Chartier de Lotbinière, Marquis de Lotbinière. Edward Ellice, private secretary to John Lambton, 1st Earl of Durham, had then been in residence for several months. He, and, separately, his wife, Lady Jane Ellice, and her sister, Eglantine "Tina" Balfour, later Ellice, were taken prisoner, along with a number of others. Ellice's watercolours, sketches and diary survived, and record that they were unharmed.The town rose up, following a series of raids by rebel leaders who had escaped into the United States. François-Marie-Thomas Chevalier de Lorimier commanded the ranks of the Patriote rebels. The British were victorious, and 108 rebels were captured and tried in Montreal. 58 of the Patriote rebels were deported to Australia, while Lorimier was hanged.British forces burned much of the area as a reprisal for the rebels’ actions.

The Battle of Baker's Farm took place in Lower Canada on November 8, 1838, during the Patriot's War. It was the first and last military success of the Patriotes in the campaign of 1838. Eight hundred Patriotes gathered on a farm near Sainte-Martine, Quebec and fought off several attacks by Loyalist volunteers. After news of the defeat of Patriotes forces at the Battle of Odelltown spread, the massed Patriotes dispersed before the arrival of British troops.

Beauharnois () is a city located in the Beauharnois-Salaberry Regional County Municipality of southwestern Quebec, Canada, and is part of the Greater Montreal Area. The city's population as of the Canada 2011 Census was 12,011. It is home to the Beauharnois Hydroelectric Power Station, as well as the Beauharnois Lock of the Saint Lawrence Seaway.

The Battle of the Chateauguay was an engagement of the War of 1812. On 26 October 1813, a combined British and Canadian force consisting of 1,530 regulars, volunteers, militia and Mohawk warriors from Lower Canada, commanded by Charles de Salaberry, repelled an American force of about 2,600 regulars which was attempting to invade Lower Canada and ultimately attack Montreal. The Battle of the Chateauguay was one of the two battles (the other being the Battle of Crysler's Farm) which caused the Americans to abandon the Saint Lawrence Campaign, their major strategic effort in the autumn of 1813.