Mont Saint-Grégoire

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Mont Saint-Grégoire
Mont Saint-Grégoire
Highest point
Elevation 251 m (823 ft)
Coordinates 45°21′29″N 73°09′08″W / 45.35806°N 73.15222°W / 45.35806; -73.15222Coordinates: 45°21′29″N 73°09′08″W / 45.35806°N 73.15222°W / 45.35806; -73.15222
Location Mont-Saint-Grégoire, 10 km (6 mi) east of Saint-Jean-sur-Richelieu, Quebec, Canada
Parent range Monteregian Hills
Topo map NTS 031H/06
Age of rock Early Cretaceous
Mountain type Intrusive stock

Mont Saint-Grégoire (height: 251 m (823 ft)) is a mountain in the Montérégie region of southern Quebec, Canada. It is composed of essexite and syenite, strongly contrasting with the surrounding sedimentary rocks. The area around Mont Saint-Grégoire is known for its maple syrup production, as well as some wine production.

The name was changed in 1923 from Mount Johnson[citation needed].


It is thought that Mont Saint-Grégoire might be the deep extension of a vastly eroded ancient volcanic complex, which was probably active about 125 million years ago.[1] The mountain was created when the North American Plate moved westward over the New England hotspot,[1] along with the other mountains of the Monteregian Hills. It forms part of the vast Great Meteor hotspot track.