Captain Paul Marin de la Malgue began construction on 11 July 1753; Jacques Legardeur de Saint-Pierre began command of the fort on 3 December 1753. This fort was the second of a series of posts that the French built between spring 1753 and summer 1754 to assert their possession of the Ohio Country. These four posts Fort Presque Isle, Fort LeBoeuf, Fort Machault, and Fort Duquesne ran from Lake Erie to the Forks of the Ohio; they represented the last links of France's effort to connect its dominions in Canada with those in the Illinois Country and Louisiana. The Englishtrading post of John Frazier, at Venango at the junction of French Creek and the Allegheny River was seized and occupied. Leaving a force to garrison the new posts, the French command returned to Canada for the winter. Fort LeBoeuf guarded the southern end of the portage road between Lake Erie and French Creek, which flowed to the Allegheny River and ultimately to the River Ohio. It served as a French trading post and garrison until 1759, when the capture of Fort Niagara forced the French to abandon the Ohio Country.
Washington's mission
, the governor of Virginia, sent the 21-year-old George Washington to Fort Le Boeuf with seven escorts, in order to deliver a message to the French demanding that they leave the Ohio Country. Dinwiddie's initiative was in response to the French building forts in the Ohio Country. Washington took Christopher Gist along as his guide; during the trip, Gist saved the young Washington's life on two separate occasions. Washington and Gist arrived at Fort Le Boeuf on 11 December 1753. Jacques Legardeur de Saint-Pierre, commandant at Fort Le Boeuf, a tough veteran of the west, received Washington politely, but contemptuously rejected his blustering ultimatum. Jacques Legardeur de Saint-Pierre gave Washington three days hospitality at the fort, and then gave Washington a letter for him to deliver to Dinwiddie. The letter ordered the Governor of Virginia to deliver his demand to the Major General of New France in the capital, Quebec City. During his stay, Washington noted that the fort had one hundred men, a large number of officers, 50 birch canoes and 70 pine canoes, many unfinished. He described the fort as on a south or west fork of French creek, near the water, and almost surrounded by it. Four houses composed the sides. The bastions were made of piles driven into the ground, standing more than high, and sharpened at the top. Port holes for cannon and loop-holes for small-arms were cut into the bastions. Each bastion mounted eight six-pound cannon and one four-pound cannon guarded the gate. Inside the bastions stood a guard-house, chapel, doctor's lodging and the commander's private stores. Outside the fort were several log barracks, some covered with bark, others with boards. In addition, there were stables, a smithy and other buildings.
War
The French and Indian War began on 28 May 1754 with the Battle of Jumonville Glen. Some four years later, on 25 July 1759, the French surrendered Fort Niagara. During August 1759, the commander of Fort Presque Isle sent an order to Fort Machault and Fort Le Boeuf to abandon their positions. After the French had complied, the British took possession of their sites. It is unclear whether the French burned Fort Le Boeuf when they abandoned it. If so, the British rebuilt it. During Pontiac's Rebellion, on 18 June 1763, a war party of Native Americans burned Fort Le Boeuf. The survivors escaped to Fort Venango, but it too was burned, so they continued to Fort Pitt. On 1 August 1794, Major Ebenezer Denny reported to GovernorThomas Mifflin from Le Boeuf. He described a fortification with four blockhouses, manned by riflemen. The two rear blockhouses had a six-pound cannon on the second floor, as well as swivel guns over the gates. When Judge Vincent settled in Waterford during 1797, he wrote, "There are no remains of the old French fort excepting the traces on the ground..."
