Ardoisalle 1947

Ardoisalle Slate Mine

Useful Information

Location: Alle.
Open: MAY-JUN Tue-Sun 10-12, 14-17.
JUL-AUG daily 10-12, 14-17.
SEP Tue-Sun 10-12, 14-17.
Fee: Adults EUR 3.50, Children EUR 2.25.
Groups (12+): Adults EUR 2.50, Children EUR 1.75.
Classification: MineSlate mine
Light: LightIncandescent Electric Light System
Guided tours:
Address: Ardoisalle 1947, Rue du Reposseau 12, B-5550 Alle-sur-Semois, Tel: +32-61-500334, +32-498-189095, Fax: +32-61-500334.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1870 opened.
1958 abandoned.


This is an abandoned slate mine, one of several in the valley of the Semois river. In the affiliated slate museum displays and a videotape tell about the mining of slate. Today the extraction and exploitation of slate has virtually disappeared. This site is run by a group of volunteers from the village Alle.