Dolmen of Cunha Baixa

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Dolmen of Cunha Baixa
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Location
Alternative nameCasa da Orca
Location Viseu, Dão-Lafões, Centro Region, Portugal
Coordinates 40°34′12″N7°46′15″W / 40.5700736°N 7.7709328°W / 40.5700736; -7.7709328 Coordinates: 40°34′12″N7°46′15″W / 40.5700736°N 7.7709328°W / 40.5700736; -7.7709328
Altitude491 m (1,611 ft)
Type Dolmen
Length3 m (9.8 ft)
Width10.2 m (33 ft)
Area10.4 km2 (4.0 sq mi)
Site notes
Discoveredc. 1892
Archaeologistsunknown
OwnershipPortuguese Republic
Public accessPrivate

The Dolmen of Cunha Baixa (Portuguese : Anta de Cunha Baixa) is a dolmen in the civil parish of Cunha Baixa, in the municipality of Mangualde. It is located in a valley area of the Rio Castelo, between the villages of Cunha Baixa and Espinho.

Contents

History

From artifacts discovered in and around the archaeological excavations, scientists have determined that it was constructed between 3000 and 2500 BC. [1] and like numerous other similar sites, is believed to be an ancient Beaker monument. It was discovered in 1892, by Leite de Vasconcelos, who first documented the dolmen, under the authority of Dr. Pais da Cunha, then owner of the property. [1] He found the dolmen damaged, with the interior chambers full of dirt, brambles and rocks of various sizes, some eroded or damaged from the dolmen itself. They proceeded to clean out the chambers and excavate to about 1.17 metres, discovering the first archaeological objects, and then continuing to the table rock. In these excavations Leite de Vasconcelos found in the interior of the dolmen, axes and polished trapezoidal-shaped polished stone adzes; rudely carved flint blades, trapezoidal microliths, triangular and semi-lunar, fragments of red and black pottery, some with ornaments; yellow ochre for body painting; burnt berry seeds; burnt pieces of substances from a forge or furnace; and a human bone. [1]

At the entrance, was an inclined rock slab 1.2 metres by 0.2 metres, with 15 grooves along its edge on both sides. Also in the adjacent terrain, a flint axe, a polished stone implement, six small blades (some jagged) and flint arrowheads, were also discovered. [1] The artifacts were transferred to the National Archaeological Museum (Portuguese : Museu Nacional de Arqueologia) in Lisbon.

It was declared a National Monument (Portuguese : Monumento Nacional) on 16 June 1910.

In 1934, the Georg and Vera Leisner carried-out a plan of the site, and cut a section from the dolmen. [1] By 1955, Irisalva Moita encountered the dolmen surrounded by scrub and the corridor obstructed by rocks. [1]

A restoration and cleaning of the site, under Raquel Vilaça and Domingos Cruz (1987), solicited the A.C.A.B. and the Central Region Archaeological Service (Portuguese : Serviço Regional de Arqueologia da Zona Centro), with authorization from the IPPC. [1] A similar cleaning was undertaken in 1994 that included cleaning the monument and the area circling the site. [1]

Architecture

Located along the municipal roadway connecting Cunha Baixa with Espinho, the site is 0.8 kilometres along a footpath to a bridge: 300 metres by foot between two properties in the locality of Orca, or Casa da Moura. [1] It is situated in a rural, fertile plain alongside a river, isolated from view and encircled by vineyards to the south and east, and pine forests to north and northwest, delimited by a wood and wire fence.

Cunha Baixa comprises a main chamber and corridor, although there are no remnants of body within its chamber. The dolmen, is a large polygonal shape enclosure, covered by a great slab of rock, of similarly large dimensions. [1] [2] This main chamber is 3 metres wide, and 3.2 metres high, formed from 9 vertical slabs, some fractured or incomplete. [1] The entrance rock is parallel to the main stone and inclined towards the interior. The roof-stone is a long rounded rectangular slab, 4.5 metres in diameter. [1]

The corridor is 7.20 metre long, at a height of 1.40 metres, oriented along the southeast of the main chamber. [1] It is built from 8 vertical slabs on either side (a few reinforced by steel beams), forming side-walls that are wider in the mid-area and converge slightly towards the main chamber entrance. [1] The vertical slabs are largely square, although some trapezoid and triangular rock pieces are located in the chamber. At the middle of the corridor, another trapezoidal roof slab, smaller than the first covers only the middle part of the corridor. [1]

The pavement of the dolmen is regular, composed of granite rock, with a total surface area of 10.4 metres. [1]

In some places there are remnants of carvings (or vestiges), such as pitting or scaring. [1]

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References

Notes
  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Marques, Lina (1995). SIPA (ed.). "Anta da Cunha Baixa/Casa da Orca" (in Portuguese). Lisbon, Portugal: SIPA – Sistema de Informação para o Património Arquitectónico. Retrieved 20 October 2011.
  2. ↑ IGESPAR, ed. (2011). "Anta de Cunha Baixa" (in Portuguese). Lisbon, Portugal: IGESPAR-Instituto de Gestão do Património Arquitectónico e Arqueológico. Archived from the original on 5 October 2012. Retrieved 20 September 2011.
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