Basel-Munsterhugel is the site of a late La Tene Iron Age oppidum in the Swiss city of Basel, built by the Gaulish Rauraci tribe. The Celts constructed a murus gallicus (Gallic wall) fortification around 80 BC, likely in response to pressure from Germanic tribes, with the oppidum proper established after the Battle of Bibracte in 58 BC. The fort was abandoned before the end of the 1st century BC following the Roman conquest of the Alps. By the early 1st century AD, a small Roman vicus developed atop the ruins, possibly the origin of the name Basilia. The site, excavated by Furger-Gunti in the 1970s, is now occupied by Basel Minster.
Basel-Münsterhügel

| Type | Fortress/citadel |
|---|---|
| Period | 500 BC - 1 AD |
| Country | Switzerland |
| Coordinates | 47.5559° N, 7.5930° E |
Switzerland