Holla Church Ruin

Unique Geography of the Area

The ruins of Holla Church tell a story not only of ancient beliefs and architecture but also of the area's distinctive geology. In the church's corners, stones from the "Kalkbergja" limestone quarry near Norsjø can be found— the same type of limestone used in medieval churches at Nes in Sauherad and Romnes.

The limestone at Holla is adorned with intricate carvings and has a remarkable origin. It is derived from remnants of the ancient Fen volcano, which was active approximately 580 million years ago.

Remains of the Fen Volcano

From the summit of Holla Hill, you can gaze out over the area where the ancient Fen volcano once stood. Although the volcano itself has eroded over time, traces of its magma conduit—the channel that once brought molten rock to the surface—remain visible.

This geology is globally significant, as the Fen volcano was the first recorded carbonatite volcano. Carbonatites, volcanic rocks rich in carbonate minerals, are present in the stones used in Holla Church's construction. Both the ruins and the Fen volcano remnants are now part of the Gea Norvegica Geopark.

Rare Minerals

The bedrock around Holla contains a wealth of rare minerals and rich iron deposits, which laid the foundation for the establishment of Ulefos Jernværk in 1657. This historic ironworks is still operational today as a foundry. It is now regulated with dams and locks, forming part of the Telemark Canal.

How To Get To Holla Church Ruin

To visit Holla Church Ruins in Ulefoss, follow the Riksvei 36 to Ulefoss center, where signs direct you to the site. Parking is available nearby, and from there, it’s a short walk to the ruins.

If traveling by public transport, you can take a bus to Ulefoss center and walk approximately 15–20 minutes to reach the church ruins.