The Tunnel Maurice-Lemaire, commonly known as the Tunnel de Sainte-Marie-aux-Mines is a former rail tunnel adapted to permit road traffic to drive between Sainte-Marie-aux-Mines (Haut-Rhin, Alsace) and Saint-Dié (Vosges, Lorraine) without needing to drive over the top of a mountain pass. The tunnel is 6.872 km (4.270 mi) long, making it the longest road tunnel wholly within France.
Tunnels
Links: en.wikipedia.org
By: Mike1989