Montérégie in the context of "South Shore (Montreal)"

Longueuil (French pronunciation: [lɔ̃ɡœj] ) is a city in the province of Quebec, Canada. It is the seat of the Montérégie administrative region and the central city of the urban agglomeration of Longueuil. It sits on the south shore of the Saint Lawrence River directly across from Montreal. The population as of the Canada 2021 Census totalled 254,483, making it Montreal's second largest suburb, the fifth most populous city in Quebec and twentieth largest in Canada.

Charles Le Moyne founded Longueuil as a seigneurie in 1657. It would become a parish in 1845, a village in 1848, a town in 1874 and a city in 1920. Between 1961 and 2002, Longueuil's borders grew three times, as it was amalgamated with surrounding municipalities; there was a strong de-amalgamation in 2006 (see 2000–2006 municipal reorganization in Quebec).

Le Haut-Richelieu Regional County Municipality (French pronunciation: [lə o ʁiʃ(ə)ljø], lit. 'The Upper Richelieu') is a regional county municipality in the Montérégie region in southwestern Quebec, Canada. Its seat is in Saint-Jean-sur-Richelieu. It is named for the Richelieu River which runs south-north through it.

Saint-Hubert (/- ˈhjuːbərt/ -⁠ HEW-bərt, French: [sɛ̃t‿ybɛʁ] , locally [sẽɪ̯̃t͡s‿ybaɛ̯ʁ]) is a borough in the city of Longueuil, located in the Montérégie region of Quebec, Canada. It had been a separate city prior to January 1, 2002, when it along with several other neighbouring south shore municipalities were merged into Longueuil. Saint-Hubert had a population of 78,336 in 2006. The area of the borough is 65.98 km (25.48 sq mi). Longueuil's city hall is now located in Saint-Hubert. Saint-Hubert is located about 14 kilometres (8.7 mi) from downtown Montreal.

The borough has a wide array of commercial, industrial and agricultural enterprises. The aerospace industry is arguably the most important of these enterprises. Pratt & Whitney Canada designs and manufactures jet engines at a plant near Saint-Hubert Airport. The Canadian Space Agency has its head office in the borough. The École nationale d'aérotechnique, a school that teaches aeronautics is located in the borough and operated by Collège Édouard-Montpetit.

The Monteregian Hills (French: Collines Montérégiennes) is a linear chain of isolated mountains in Montreal and Montérégie, between the Laurentian Mountains and the Appalachians.