This minimum security prison opened in 1921. It sits 'in the middle of nowhere' and the inmates worked in various capacities, including doing the laundry for the nearby Grand Chateau Hotel, a ski resort in a World Heritage Park.
According to the internet, it was closed in 1986 due to lack of funding to upgrade. According to word-of-mouth, it was closed because prison families complained because it was too far to travel to see the inmates.
*edit* From the little information I can find, this is one of the two main buildings that held about 100 prisoners.