Fort St. Joseph (Port Huron) (Port Huron, Michigan)

Port Huron · Michigan · Iroquois Wars

Quick BriefDaniel Greysolon, Sieur du Lhut established Fort St. Joseph in 1686 on the St. Clair River for New France to prevent English trade with native tribes. In 1687, the fort served as mobilization center for French and allied forces preparing to attack the Six Nations Iroquois Confederacy during the Iroquois Wars. The fort's commander burned it on August 27, 1688, and relocated to Michilimackinac. Built in 1686, this fort was the second white settlement in lower Michigan.
Coastal defense
Fort St. Joseph (Port Huron), Michigan

History & Significance

Fort St. Joseph was established in 1686 by Daniel Greysolon, Sieur du Lhut on the St. Clair River to prevent English trade with native tribes in New France. Strategically positioned to guard the vital waterway joining Lake Erie and Lake Huron, the fort was designed to bar English traders from the upper lakes and served in 1687 as the mobilization center for a war party of French and Indians.

About two hundred coureurs de bois, five hundred Algonquian, Henri de Tonti, Nicholas Perrot, Oliver Morel de La Durantaye, and thirty French soldiers gathered there under Marquis de Denonville's orders to prepare for an attack on the Six Nations Iroquois Confederacy during the Iroquois Wars. With lack of supplies and no orders from the governor, commander Louis-Armand de Lom d'Arce de Lahontan burned Fort St. Joseph on August 27, 1688, and moved to Michilimackinac.

The site became part of Fort Gratiot in 1814. The post's ephemeral existence—just two years—reflected the challenges of French colonial expansion and logistical constraints on the frontier, yet its brief occupation underscored the strategic importance of the St. Clair River corridor in the struggle for control of the Great Lakes fur trade.

Key Facts

StateMichigan
LocationPort Huron
Established1686
Decommissioned1688
War / eraIroquois Wars
Current statusMuseum / Historic Site
Coordinates43.00193, -82.42758

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🧳 Visiting

From the nearest major airportDetroit Metropolitan Wayne County Airport (DTW)🚗 81 mi by road⏱️ ≈ 1 hr 40 min drive

Sources

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