The previous year had seen the rout of over 16,000 British, Provincial and Natives by a French army a fourth the size commanded by the Marquis de Montcalm. The hastily built abatis and log wall the French threw across the peninsula stopped all but a few resulting in the bloodiest day on the continent until Antietam during the Civil War.
A year later the French fort was poorly manned and suffered from lack of supplies as it was the furthest military post from Montreal. Already determined to leave nothing useful for their attackers, the French troops evacuated the fort, blowing up the powder magazine and warehouse. The British took over a badly-damaged outpost and held it for another 16 years.
After a 10-year effort, which included three of archeological site-work, the magasin du Roi, has been authentically rebuilt and now houses a modern museum, education and meeting spaces.