Saint- Aignan is a commune with 138 inhabitants (as of January 1, 2011 ) in the Ardennes department in the Champagne- Ardenne region.
The place is situated on the upper reaches of the river bar, accompanied here the Canal des Ardennes and ends at Pont -à- Bar in the River Meuse. Westwards the duct passes into the valley of the Aisne. Near the place where the duct passes through a tunnel.
- Church from the 12th century.
- Channel Tunnel, built in 1892