An Impressive Mountain
High altitude (335 m)
Mont Adstock is a unique lookout over the region with panoramic views of the varying landscape (lakes, farming land, mining, mountains, etc.).
Like Mont Owl’s Head and Mont Orford, Mont Adstock is a remnant of the ancient Iapetus Ocean’s sea floor, making it an underwater mountain of sorts.
It dates back to the Taconic orogeny—the first stage in the formation of the Appalachian mountains in southeastern Quebec—approximately 450 million years ago. Comprised of gabbroic rocks (like Mont Royal), Mont Adstock is traversed by rare diabase veins. You can even see glacial striations formed by debris embedded at the base of glaciers.