Richelieu/Messier Aerodrome

The Chambly Canal is a National Historic Site of Canada in the Province of Quebec, running along the Richelieu River past Saint-Jean-sur-Richelieu, Carignan, and Chambly. Building commenced in 1831 and the canal opened in 1843. It served as a major commercial route during a time of heightened trade between the United States and Canada. Trade dwindled after World War I, and as of the 1970s, traffic has been replaced by recreational vessels. It is part of a waterway that connects the Saint Lawrence River with the Hudson River in the United States. Lake Champlain and the Champlain Canal form the U.S. portion of the Lakes to Locks Passage. The Canal has 10 bridges—8 of which are hand operated—and nine hydraulic locks. Draft: 6.5 ft (1.98 m) Clearance: 29 ft (8.84 m) Canal Length: 20 km (12 mi) Dimensions of smallest lock: 110 ft × 21 ft (33.53 m × 6.40 m) Passage time: 3 to 5 hours

L'île Sainte-Marie (English: Sainte-Marie Island) is a river island of the Richelieu River. It is located in the territory of the municipality of Carignan, in the La Vallée-du-Richelieu Regional County Municipality, in the administrative region from Montérégie, in the south of province of Quebec, to Canada. Île Sainte-Marie is located downstream from Sainte-Thérèse Island, from which it is separated by a narrow channel.

The Sainte-Thérèse Raid was a military raid on the town of Sainte-Thérèse in French Canada conducted by British elite forces known as Rogers' Rangers that took place during the French and Indian War from 3 to 18 June 1760. Led by Robert Rogers the raid was a pre-emptive strike ordered by Major General Jeffery Amherst as a prelude to his three pronged attack on Montreal the following month. Setting off from Fort Crown Point they had to fight against a superior force of French and their allied natives along the shores of Lake Champlain. The Rangers then advanced further north to strike at the Forts of Chambly, Saint-Jean and Île aux Noix. Rogers seeing them too well defended, struck at Sainte-Thérèse instead realising it was an important supply hub. Through a clever ruse he destroyed the fort, supplies and settlement capturing prisoners and gaining valuable information before arriving back at Crown Point.

L île Sainte-Thérèse (English: Sainte-Thérèse Island) is a river island of the Richelieu River. It belongs to the territory of the municipality of Saint-Jean-sur-Richelieu, in the Saint-Luc sector, in the Le Haut-Richelieu Regional County Municipality, in the region administrative Montérégie, in the south of province of Quebec, in Canada.

The Rivière des Iroquois is a tributary of the Richelieu River. It flows in the Saint-Luc sector, of the municipality of Saint-Jean-sur-Richelieu, in the Le Haut-Richelieu Regional County Municipality, in the region administrative of Montérégie, in southern part of the province of Quebec, in Canada. The river surface is generally frozen from mid-December to the end of March. Safe traffic on the ice is generally from late December to early March. The water level of the river varies with the seasons and the precipitation.

Iberville was a city in the Montérégie region of the Canadian province of Quebec on the east side of the Richelieu River, across from Saint-Jean-sur-Richelieu. It was about 30 miles (50 km) from Montreal, and about the same distance from the United States border at the head of Lake Champlain. In 2002, Iberville merged with neighbouring Saint-Jean-sur-Richelieu, along with several other neighbouring towns and villages. The population of Iberville in 2006 was 9,989, up 6% from the 2001 census. The last mayor of Iberville was Jean Rioux, who later became a Liberal MNA in the National Assembly of Quebec and a Liberal MP in the House of Commons of Canada.

Richelieu Airport (TC LID: CSX3) is located adjacent to the community of Richelieu, Quebec, Canada.

Saint-Jean-sur-Richelieu (French pronunciation: [sɛ̃ ʒɑ̃ syʁ ʁiʃ(ə)ljø]) is a city in eastern Montérégie in the Canadian province of Quebec, about 40 kilometres (25 mi) southeast of Montreal. It is situated on both the west and east banks of the Richelieu River at the northernmost navigable point of Lake Champlain. As of December 2019, the population of Saint-Jean-sur-Richelieu was 98,036.

Mont-Saint-Grégoire (French pronunciation: [mɔ̃ sɛ̃ ɡʁeɡwaʁ]) is a municipality in the province of Quebec, Canada, located in the Regional County Municipality of Le Haut-Richelieu. The population as of the Canada 2011 Census was 3,086. Residents of Mont-Saint-Grégoire are called Grégoriens (Grégoriennes, fem.).

Richelieu is a city in Rouville Regional County Municipality, in the province of Quebec, Canada. The population as of the Canada 2021 Census was 5,742. Its name comes from the fact that it lies along the Richelieu River.

Notre-Dame-de-Bon-Secours was a former municipality in Quebec. On March 15, 2000, it amalgamated into the city of Richelieu.

The Cathedral of Saint-Jean-l'Évangéliste (St. John the Evangelist) is the seat of the Roman Catholic Diocese of Saint-Jean-Longueuil in Canada. It is located in the city of Saint-Jean-sur-Richelieu, Quebec.