Underground Wonders

Valkenburg's landscape is defined by its extensive network of marlstone quarries and subterranean sites. This collection includes the Gemeentegrot, a former quarry featuring charcoal drawings and sculptures, and the Modelsteenkoolmijn, which demonstrates Dutch mining history. Visitors can explore religious heritage at the Lourdesgrot on the Cauberg or view replicas of early Christian burial sites at the Roman Catacombs. The list also highlights archaeological remains of Roman villas and the vast tunnels of the Sibbergroeve.

Gemeentegrot

Former marlstone quarry featuring charcoal drawings, sculptures, and a history as a WWII shelter. The site is wheelchair accessible and offers guided tours by foot or train.

Romeinse villa Groot Haasdal-Billich

Archaeological site containing the foundations of Roman villas, representing the historical rural settlement patterns of the Limburg region.

Lourdesgrot

Religious monument on the Cauberg, built in 1926 as a replica of the Grotto of Massabielle in Lourdes.

Modelsteenkoolmijn /Ackermangroeve

A simulated coal mine located inside a marlstone quarry, demonstrating historic mining techniques and equipment used in the Limburg mining industry.

Katacomben onder

Early 20th-century replicas of Roman catacombs carved into the marlstone, recreating the art and architecture of ancient Christian burial sites.

Sibbergroeve, Nieuwe ingang

One of the largest marlstone quarries in the region, featuring an extensive tunnel network used for stone extraction and underground activities like mountain biking.