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.

Mont Saint-Grégoire
Mont Saint-Grégoire
Highest point
Elevation	251 m (823 ft)
Coordinates	45°21′29″N 73°09′08″W
Geography
Location	Mont-Saint-Grégoire, 10 km (6 mi) east of Saint-Jean-sur-Richelieu, Quebec, Canada
Parent range	Monteregian Hills
Topo map	NTS 31H6 Saint-Jean-sur-Richelieu
Geology
Age of rock	Early Cretaceous
Mountain type	Intrusive stock

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

Geology

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.

References

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[fr] Mont Saint-Grégoire