Discover Zerain, the Iron Mountain That Seems Unreal

Zerain, a Montanha de Ferro no País Basco.
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2024-09-29

Zerain is a small village in the Basque Country known as the “Iron Mountain” due to its rich industrial heritage related to iron mining.

In this text, I share my impressions of the visit and provide a detailed view of what to expect when visiting this iconic Basque site.

However, readers should be warned that Zerain is a place that exceeded all expectations!

There is something simply irresistible about the combination of industrial ambiance and pristine nature that I didn’t think possible.

For me, the Iron Mountain was one of the great revelations of the Basque Country! However, Zerain has more to offer beyond its mining past.

Therefore, I also included suggestions on what to do and visit in the village center, as well as a restaurant recommendation, so you can plan your itinerary.

Continue reading to the end, check out the photos, and discover what makes this place such a special and unforgettable destination.

Preparation for the guided tour at the Aizpea Furnaces, Zerain.
Preparation for the guided tour at the Aizpea Furnaces, Zerain.
Iron Mountain in the Basque Country.
Iron Mountain in the Basque Country.
The three iron extraction furnaces in Zerain (Basque Country).
The three iron extraction furnaces in Zerain (Basque Country).
Two furnaces seen up close.
Two furnaces seen up close.
Detail of an Aizpea furnace.
Detail of an Aizpea furnace.
Entrance to the mines.
Entrance to the mines.
Tunnels in the Zerain mines.
Tunnels in the Zerain mines.
Industrial tourism in the Aizpea iron mines.
Industrial tourism in the Aizpea iron mines.
Transportation of iron ingots
Transportation of iron ingots

Zerain, the Iron Mountain (Aizpea Furnaces)

Zerain, affectionately nicknamed the “Iron Mountain,” has played a crucial role in the region’s economy for centuries.

Iron mining in Zerain dates back to the medieval period, and the area was a significant production center until the 19th century.

The importance of the iron extracted in Zerain cannot be overstated, as this resource was vital for the local industry and for the manufacturing of weapons and tools.

The mines, which once were a part of village life, are now a place of discovery for curious visitors like myself.

During a visit to the Aizpea Furnaces, you can explore the ancient furnaces as well as the channels used for iron smelting.

Main building at the Aizpea Furnaces, Zerain.
Main building at the Aizpea Furnaces, Zerain.
Aizpea Furnaces and the mountains.
Aizpea Furnaces and the mountains.
View from the Aizpea Furnaces.
View from the Aizpea Furnaces.
Explore the Aizpea Furnaces.
Explore the Aizpea Furnaces.
See the furnaces up close.
See the furnaces up close.
Interior of the furnaces.
Interior of the furnaces.
Exit of the furnaces.
Exit of the furnaces.
The Zerain furnaces.
The Zerain furnaces.
Tunnel to the Aizpea mines.
Tunnel to the Aizpea mines.
Stairs to the Aizpea furnaces.
Stairs to the Aizpea furnaces.

The Iron Mountain Experience: A Journey into the Past

The experience at the Aizpea Furnaces begins with an interactive visit to the main building, where explanations about the region’s mining history are provided.

Next, you follow a trail that leads to the old iron mines, where you can get a close look at the remnants of mining activity: the mines and the furnaces.

The old mines, now silent, are a haunting place. It is hard to imagine what life was like for the miners inside these dark, poorly ventilated tunnels. It was undoubtedly hard work.

You can explore part of the underground galleries with the help of specialized guides, even though they are not fully accessible, and it is well worth the effort.

Additionally, I found it very interesting to see how the old lime kilns and the channels used for smelting iron are still well-preserved.

These remnants of the past reveal the ingenuity of the techniques used at the time, as these ancient furnaces were used to transform iron into ingots.

The furnaces were fed from the top; rocks containing ore were placed at the top of the furnace, which was then ignited.

The molten iron was extracted from the mouth of the furnace, that is, from the bottom.

It was a continuous job of adding rocks, controlling the combustion, and removing the molten metal.

Location of the Aizpea Furnaces: Aizpea Auzoa, Auzoa, 57, 20214 Zerain, Gipuzkoa, Spain.

Zerain, the Iron Mountain in the Basque Country.
Zerain, the Iron Mountain in the Basque Country.
Explore the Aizpea iron mines.
Explore the Aizpea iron mines.
Guided tour of the Aizpea iron mines.
Guided tour of the Aizpea iron mines.
Aizpea iron mines.
Aizpea iron mines.
Visit the Aizpea iron mines in the Basque Country.
Visit the Aizpea iron mines in the Basque Country.

Around Zerain: What to Do and See (Beyond Visiting the Iron Mountain)

Iglesia de la Asunción de Nuestra Señora in Zerain, Basque Country.
Iglesia de la Asunción de Nuestra Señora in Zerain, Basque Country.
Explore Zerain on foot.
Explore Zerain on foot.

Although the Aizpea Furnaces are truly something out of the ordinary, the center of Zerain is also worth exploring.

Thus, my visit to Zerain included a walk through the town center, with a stop at the Zerain Ethnographic Museum.

This museum is excellent for understanding traditional Basque life, as it features exhibits on rural life, craftsmanship, and local traditions.

I really enjoyed this exhibition.

Zerain Ethnographic Museum.
Zerain Ethnographic Museum.
Interior of the Zerain Ethnographic Museum.
Interior of the Zerain Ethnographic Museum.
Discover mining traditions at the Zerain Ethnographic Museum.
Discover mining traditions at the Zerain Ethnographic Museum.
Collection of the Zerain Ethnographic Museum.
Collection of the Zerain Ethnographic Museum.

Additionally, I had the opportunity to have lunch at the Ostatu de Zerain Restaurant and I highly recommend it!

One of the unique features of this restaurant is that the room where we had lunch was the former prison of Zerain.

You can really see that the light was quite limited.

Ostatu de Zerain Restaurant.
Ostatu de Zerain Restaurant.
Crepe relleno de hongos y verduritas.
Crepe relleno de hongos y verduritas.
Carrilleras de ternera en salsa de vino tinto.
Carrilleras de ternera en salsa de vino tinto.
Pantxineta, a typical Basque dessert made with puff pastry, cream, and almond.
Pantxineta, a typical Basque dessert made with puff pastry, cream, and almond.
Menu of Ostatu de Zerain Restaurant.
Menu of Ostatu de Zerain Restaurant.
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*I visited Tolosa and Goierri (including Zerain) on a Fam Trip organized by inbasque DMC as part of TBEX Europe. I was supported by Brian Cullen Bruneval from Tolosaldea Tourism, who accompanied the group as a tour guide.

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