In 1755, following the Battle of Lake George, the Marquis de Vaudreuil, the governor of the French Province of Canada, sent his cousin Michel Chartier de Lotbinière to design and construct a fortification at this militarily important site, which the French called Fort Carillon [REF].
The work in 1755 consisted primarily of beginning construction on the main walls and on the Lotbinière redoubt, an outwork to the west of the site that provided additional coverage of the La Chute River.