Mont Saint-Hilaire (French pronunciation: [mɔ̃ sɛ̃t‿ilɛʁ]; English: Mount Saint-Hilaire; Western Abnaki: Wigwômadenek, Wigwômadensizek;, Western Abnaki: Wigwômaden; see § Names of Mont Saint-Hilaire for other names) is a mountain, 414 m (1,358 ft) high, in the Montérégie region of southern Quebec. It is about thirty kilometres east of Montreal, and immediately east of the Richelieu River. It is one of the Monteregian Hills. Around the mountains are the towns of Mont-Saint-Hilaire and Saint-Jean-Baptiste. Other nearby towns include Otterburn Park, Beloeil and McMasterville.
The area surrounding the mountain is a biosphere reserve, as one of the last remnants of the primeval forests of the Saint-Lawrence valley. Most of the mountain is currently the property of McGill University, as the Gault Nature Reserve, which is considered the third McGill campus. The University has opened the western half of the mountain to visitors (at a fee) for hiking and cross-country skiing, as the Milieu Naturel (natural area). The eastern half, or Milieu de Conservation (preservation area), is not accessible to the general public.
