Castillo del Collao, Camargo

Castillo del Collao is an early medieval hillfort overlooking the village of Escobedo, in the municipality of Camargo, Cantabria. The archaeological site sits atop El Collao hill at roughly 96 metres above sea level and is regarded as the largest of nearly thirty comparable fortified settlements from this period found across Cantabria.

What can visitors see on site?

What remains today are consolidated stretches of defensive walls and the outlines of the settlement's structures, uncovered during excavation work and left open to the public in the open air. The site sits on public land, reached by a signposted walking trail that starts in Escobedo de Camargo — a walk that pairs scenic hillside views with direct contact with a genuine archaeological site, with no booking or entry fee required.

How old is the hillfort?

Carbon-14 testing dated the site to between the years 760 and 1020, with a margin of error of around 110 years for each date, and both are considered reliable markers for the settlement's foundation and abandonment. That places Castillo del Collao squarely in the early Middle Ages, during the reorganisation of the Cantabrian coastline carried out by the Kingdom of Asturias following the collapse of Visigothic Spain.

What is the history of research at the site?

The hillfort was discovered and first excavated in the early decades of the 20th century by Jesús Carballo, one of the pioneers of Cantabrian archaeology, who mistakenly attributed it to the Iron Age. Its correct chronology and character were only established through excavations carried out in the late 1970s and 1980s by a team led by Ramón Bohigas Roldán. That work uncovered the settlement's main structures and recovered a substantial collection of archaeological material — pottery, metal objects, and food remains — offering a glimpse into the everyday life of the people who lived there.

Does the site hold heritage protection?

Castillo del Collao was declared a Bien de Interés Cultural (Site of Cultural Interest) on 6 May 2003. Between 2000 and 2001 the ruins were restored and a dedicated access path was created, so today the hillfort can be visited comfortably thanks to signage and walking infrastructure designed with tourists in mind.

Why is it worth the trip?

A visit to Castillo del Collao combines three things rarely found together: a genuine, scientifically documented archaeological site more than a thousand years old, a hilltop vantage point over the surrounding valley, and a gentle walking trail suited to families and moderately fit visitors alike. It makes a good option for travellers based in Santander or elsewhere along the Cantabrian coast who want an alternative to the beach — a short inland detour that pairs regional history with time outdoors.

Camargo lies right next to the regional capital, which makes Castillo del Collao a convenient half-day destination, combining a visit to the ruins with a short walk through the hills that ring Santander's bay.

Frequently Asked Questions

How old is Castillo del Collao? Carbon-14 dating places it between the years 760 and 1020, making it an early medieval hillfort over a thousand years old.

Is there an entry fee for the site? The site sits on public land and is open to visitors via a signposted walking trail starting in Escobedo de Camargo.

Who excavated the site? It was first studied in the 20th century by Jesús Carballo, while the key excavations that established its correct chronology were led by Ramón Bohigas Roldán in the 1970s and 1980s.

Is Castillo del Collao a protected heritage site? Yes, it was declared a Bien de Interés Cultural (Site of Cultural Interest) on 6 May 2003.