The reception room at the Mont Édouard ski resort in L’Anse-Saint-Jean was completely destroyed by flames on Friday afternoon.
A public alarm was sounded by the Fjord Intermunicipal Fire Safety Authority (RISIF).
Firefighters confirmed the building was a total loss.
Firefighters from five fire stations were called to intervene.
At around 7pm, the last fire was extinguished. Only the shell of the building remained.