SAINT-HIPPOLYTE AND SAINTE-SOPHIE QUARRIES
These quarries are located on both sides of the town limit, between Sainte-Sophie and Saint-Hippolyte, in the Low Laurentians. They are located more precisely in the geological Precambrian Grenville province and are more than 544 million years old.
In these quarries, there are sedimentary rocks of plutonic origin that have been distorted by a regional metamorphism which resulted in granite gneiss formations.
Superficial deposits of sand and gravel can also be found. They date back to the last glacial, between 70,000 and 10,000 years ago, during the Quaternary Period.
