Fort de Saint-Priest

Fort de Saint-Priest is a military fortification built on a hilltop with deep trenches and high gates protecting the main structure. The construction uses stone from various French regions, including materials from Isère and Monts d'Or.

The fort was built between 1887 and 1890 as part of Lyon's second defensive ring protecting the region. Its purpose was to monitor the Isère plain and guard the Grenoble railway line.

The fort is named after the locality where it stands, and its architecture shows how late 19th-century French military engineers designed defensive structures. Visitors can observe how the octagonal design and thick stone walls reflect the engineering ideas of that era.

Visiting is easiest during Heritage Days when guided tours and photo exhibitions about the fort's past are available. The site sits on a hilltop, so wear comfortable shoes for walking the grounds.

Inside the fort lies a powder magazine that once stored ammunition and was purposefully built against the main barracks. It used a newer, safer powder formula introduced in 1884 to reduce the risk of accidents.

GPS coordinates: 45.69470,4.96631

Latest update: December 13, 2025 17:09