Anta da Nave do Grou/ Sobral

Anta/Dolmen - Neolithic (471)
The Nave do Grou Dolmen or Sobral's Dolmen is located in an isolated position on a flattened area, surrounded by wild vegetation, being part of a landscape with a significant concentration of funerary megalithic monuments. This megalithic monument consists of a chamber of irregular polygonal shape (about 3.20m by 2.40m in diameter and 1.80m maximum height), formed by seven thick granite blocks, significantly close to each other, which imparts a unique appearance. No traces of the corridor were identified in the archaeological works carried out on this dolmen. Vestiges of the mamoa are identified on the outside, which would reach roughly 25m in diameter. The cover slab was toppled when it was found at the end of the 19th century by Francisco Pereira da Costa and was restored during the research and enhancement works carried out in the 20th century. The architectural features of this dolmen allow to chronologically frame it in the Late Neolithic/Chalcolithic (3500 - 2000 BC).


This megalithic monument is integrated in an archaeological route - "Roteiro Arqueológico de Castelo de Vide" - and in a pedestrian route - "Percurso Pedestre Grande Rota de Castelo de Vide". In the Interpretive Centre of megalithism - "Centro de Interpretação do Megalitismo", located on the lower floor of the side building of the "Praça de Armas" of the castle of Castelo de Vide, there are information panels regarding this theme. Archaeological objects are also displayed.

Visit conditions

Free entrance



How to get there? Best practices

Best practices

Good practices when visiting archaeological sites

To visit an archaeological site is to connect with our origins, to understand our path and evolution as a species integrated in the environment, and to respect and safeguard our heritage so that future generations can also visit and enjoy it.

Walking the paths and enjoying the structures and archaeological pieces that survived over time, fosters the understanding of what is different, but also of what is common among different populations: basically, what identifies us as Homo Sapiens.

More than just vestiges and ruins of the past, archaeological sites showcase our capacity for creative thought, adaptation, interconnection, comprehension and resilience. Without these traits we would not have been successful as cultural beings participating in an ongoing evolutionary process. These sites also allow to consider choices made in the past thus contributing for decisions in the present to be made with greater awareness and knowledge.

Archaeological sites are unique and irreplaceable. These sites are fragile resources vulnerable to changes driven by human development. The information they keep, if destroyed, can never be recovered again.

As such, the Directorate-General for Cultural Heritage (DGPC) invites all visitors to enjoy the beauty and authenticity of these sites, while helping to preserve them for future generations by adopting the following set of good practices:

  • Respect all signs; 
  • Do not try to access fenced areas; 
  • Do not climb, sit or walk on archaeological structures and remains; 
  • Respect areas where archaeological excavations are being carried out, not disturbing them; 
  • Do not collect materials or sediments;
  • Do not write or make graffiti on archaeological structures; 
  • Put the garbage in appropriate containers. If none exist, take the garbage with you until you find a suitable container; 
  • Leave the archaeological site as you found it; 
  • Do not drive bicycles or motor vehicles over archaeological sites; 
  • Respect and protect the plants and animals that live in the areas surrounding archaeological sites;
  • Report signs of vandalism or destruction to DGPC or Regional Directorates of Culture (DRC);
  • Share the visiting experience and the archaeological sites, as a way of raising awareness to their preservation and making them better known;
  • Do not buy archaeological materials and report to public security authorities, DGPC or DRC, if you suspect that archaeological materials may be for sale.

Further information:

AIA / ATTA (2013) – Guide to best practices for archaeological tourism. 

Raposo, J. (2016) – Código de conduta para uma visita responsável a sítios arqueológicos. In Sítios arqueológicos portugueses revisitados: 500 arqueossítios ou conjuntos em condições de fruição pública responsável. Al-madan, 2ª série, p. 20 – 77. 

DGPC contacts

Phone: +351213614200 | Email:


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