The Lützel (French: Lucelle) is a 25 km long tributary of the Birs in Switzerland and France. It flows into the Birs near Laufen. For 12 km, it forms the border between Switzerland and France.
The Lützel (French: Lucelle) is a 25 km long tributary of the Birs in Switzerland and France. It flows into the Birs near Laufen. For 12 km, it forms the border between Switzerland and France.
