Mont-Saint-Hilaire is a mountain located in the Montérégie region of Quebec, Canada. It rises to an elevation of 414 meters and is part of the Monteregian Hills, a unique geological formation. The mountain is known for its rich biodiversity and offers various outdoor activities, including hiking and birdwatching. The area surrounding Mont-Saint-Hilaire is home to the Mont-Saint-Hilaire Nature Reserve, which protects its natural environment. This reserve features numerous trails and scenic viewpoints, making it a popular destination for nature enthusiasts. The mountain is also recognized for its stunning views of the Richelieu River and the surrounding landscape.