[1] The Fort de Bruissin is located about 8.5 kilometres (5.3 mi) to the southeast of the center of Lyon.

[3] The Fort de Bruissin is a six-sided polygon, with masonry walls surrounded by a defended ditch.

The most striking feature of the fort is its entry court, reached through a gatehouse at the head of a bridge over the ditch.

Close-in defense was provided by revolving cannons in large caponiers at the corners of the fort, reached by subterranean passages.

[2] The fort was initially manned by 294 men, serving a total of thirty artillery pieces.

During World War II, the fort was occupied by the Germans, who used it as an ammunition depot and headquarters.