Fuerte San Miguel

Fuerte San Miguel is a stone fortress on Sierra de San Miguel in eastern Uruguay with five pentagonal bastions and thick defensive walls. The structure shows classical military design intended for border surveillance and defense.

Portuguese forces built the initial fortification in 1737 at a strategic location for border control. The structure later transformed into a star-shaped fort following Vauban's military principles.

The fortress houses a Military History Museum displaying uniforms and weapons from different periods of Uruguayan defense. Visitors can explore how the military organization evolved through the centuries.

The fortress is located about 8 kilometers west of Chuy and is accessible via Route 19. The hilltop location provides good views and clear access for visitors exploring the site.

The location was chosen for monitoring border movements, as troops stationed there could observe Spanish military activities across the boundary region. The elevated position on the hillside gave guards a far-reaching view over the frontier area.