Mont Saint-Grégoire

Mont Saint-Grégoire is a 251-metre hill in southern Quebec’s Montérégie region, one of the Monteregian Hills that rise sharply above the lowlands. Its essexite and syenite bedrock sets it apart from the surrounding sedimentary terrain, making it both geologically distinctive and visually prominent. Geologists regard it as the deeply eroded core of an ancient volcanic complex, likely active about 125 million years ago, associated with the North American Plate’s movement over the New England hotspot and the wider Great Meteor hotspot track. Renamed in 1923 from Mount Johnson, it honors Pope Gregory I, while the surrounding countryside is known for maple syrup and some wine production.

Québec · Canada