Located north of Luzech, the rocky promontory of the Impernal dominates the Lot Valley. Numerous excavation campaigns have taken place since the discovery of the site in 1872. They have brought to light three areas of built structures.
- A temple (fanum) of Celtic tradition, of Roman construction on a Gallic oppidum.
- A construction recently interpreted as a more massive temple than the fanum.
- Three walls (including two buried walls) representing 1500 years of the history of ancient fortifications.
Maison de l'oppidum: information on the history of the site, children's area.... open during guided tours by appointment.