Karst-de-Saint-Elzéar Biodiversity Reserve

Karst-de-Saint-Elzéar Biodiversity Reserve (Réserve de biodiversité du Karst-de-Saint-Elzéar) is a biodiversity reserve located in Gaspésie–Îles-de-la-Madeleine, Quebec, Canada, around 15 km north of the town of Saint-Elzéar. It was established on June 20, 2005. It lies between latitudes 48°13’N and 48°19’N and between longitudes 65°17’W and 65°25’W. The elevation of the reserve lies at between 135 m and 605 m.

Within the reserve, seven caves have been discovered, although only one of them (grotte de Saint-Elzéar) is open to the public. It is the only reserve to conserve a karst.

The cave is always 4 C, whatever the time of year. It is 200 m long and 35 m deep. It is estimated to be around 230,000 years old, making it one of the oldest caves in Quebec.