Museo Arqueolóxico de Santa Trega

Museo Arqueolóxico de Santa Trega (MASAT) is an archaeological museum in A Guarda, Galicia, perched on top of Monte Santa Trega right next to the remains of a Celtic hillfort (castro).

What is inside the museum?

MASAT's exhibition traces the different phases of settlement on the mountain, from the Bronze Age through the flourishing of castro culture and into the Roman period. Among the original finds on display are bronze ornaments, polished beads, and a distinctive sword with a spiral-ended hilt known as an "antenna sword." Visitors can also see stones carved with spirals and triskeles, pottery, and Roman coins recovered from the site. Scale models reconstructing the ancient settlement and explanatory panels in Galician and Spanish round out the collection.

The museum itself was founded by the Sociedad Pro-Monte in 1917 and originally occupied premises down in the town of A Guarda. It only moved to its current building, right on the site of the old hillfort at the summit, in 1953 — a location that lets visitors combine the museum with a walk through the ruins outside.

How do you get there?

MASAT sits atop Monte Santa Trega, the mountain overlooking A Guarda at the point where the Miño River meets the Atlantic, right on the border with Portugal. An access road runs to the summit, so visitors can drive up or walk; the mountain itself is one of the emblems of this corner of Galicia known as Baixo Miño.

What else is there to see besides the museum?

Right outside the museum building lies the excavated castro itself, including a reconstructed round stone dwelling that gives a sense of what daily life looked like here centuries ago. From the summit's viewpoints — Pico do Facho and San Francisco — the mountain opens up into a 360-degree panorama: the Miño estuary, the Atlantic coastline, the O Rosal valley, and northern Portugal. It's one of the best lookout spots in the region, especially at sunset.

When should you visit and how long does it take?

The museum opens Tuesday through Sunday. Summer hours run later, until around 8:00 pm, while winter closing time is earlier, around 5:00 pm. Admission to the permanent exhibition is free. On weekends, free 30-minute guided tours of the castro depart at 11:30 am, and longer 90-minute tours up the mountain leave from the museum, typically around 12:30 pm and 5:00 pm. Plan for one to two hours to cover the museum, the castro, and the viewpoints properly.

Frequently asked questions

Is admission to MASAT free? Yes, entry to the museum is free, and many of the guided tours of the castro are offered at no charge as well.

Can you visit the museum and the castro together? Yes — the museum building stands right next to the archaeological site, so both are typically visited together during the same trip up the mountain.

How do you reach Monte Santa Trega? A paved access road climbs to the summit from A Guarda, and it can be covered by car or on foot; the route is also popular with hikers.

Is it worth the trip just for the views? Absolutely — the summit's viewpoints look out over the Miño estuary, the Atlantic, and Portugal, regardless of the museum's opening hours.