Location
Fort Carillon was situated south of Lake Champlain and north of Lake George, a natural point of conflict between the French forces, who were advancing south from Quebec through the Richelieu River towards Lake Champlain and the Hudson Valley, and the British forces, who were hoping to move north. The area was chosen so as to control the southern point of Lake Champlain as well as access to the Hudson Valley. The fort is surrounded by water on three sides, and on half of the fourth side by a moat. The portion remaining was strongly fortified by deep trenches, sustained by three batteries of cannon and, in front of the fort, blocked by trees which had been cut down and the pointed ends strengthened by fire, creating a formidable defensive system.
Handicapped by corruption, the construction continued at a slow pace. By mid-July 1756, four bastions with cannon were placed at a height of 5.5m. Two of the bastions were directed to the northeast and northwest, away from the lake. They were the Reine and Germaine bastions, with two demilunes (an outwork in front of a fort, shaped like a crescent moon) further extending the works on the land side. The two other bastions provided cover for the landing area outside the fort. They were the Joannes and Languedoc bastions, which overlooked the lake to the south. The walls were seven feet (2.1 meters) high and fourteen feet (4.3 meters) thick, and the whole works was surrounded by a glacis and a dry moat five feet (1.5 meters) deep and 15 feet (4.6 m) wide. The fort was armed with cannon brought in from Fort St. Frédéric and Montréal.
By Fall, the fort was still not finished when an important discovery was made: as soon as the trees of the peninsula were cut, the French realized that the location they chose did not join well with the junction between the two lakes. To correct this, a second but smaller fort was built closer to the lake, known as Redoute des Grenadiers. By January 1757, the fort was still incomplete and composed of earth and moats, mounted by 36 cannon waiting for an attack that the French were anticipating. The French and Canadians did not want to wait passively for the British assault however, and decided to attack first. In April, 8,000 men, under the command of Marquis de Montcalm, mustered at Fort Carillon Fort Saint Frédéric. In August 1757, they crossed Lake George to take Fort William Henry. The operation was a success and Montcalm brought back his men to Fort Carillon for the summer.
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