Les sites d'art rupestre préhistorique de la vallée de Côa (Portugal) et de Siega Verde (Espagne) se trouvent sur les berges escarpées des rivières Côa et Agueda, deux affluents du Douro, documentant une occupation humaine continue depuis la fin du Paléolithique. Des centaines de parois ont été gravées de milliers de figures animales par l'homme durant plusieurs millénaires (5 000 à Côa, environ 440 à Siega Verde) représentant l'ensemble d'art paléolithique en plein air le plus remarquable de la Péninsule Ibérique. Les Vallées de Côa et de Siega Verde offrent la meilleure illustration des thèmes iconographiques et de l'organisation de l'art rupestre Paléolithique, qui adopta les mêmes modes d'expression dans les grottes et en plein air. Elles contribuent ainsi à une meilleure compréhension de ce phénomène artistique, formant ensemble un lieu unique de l'ère préhistorique, riche en témoignages matériels d'occupation au paléolithique supérieur.

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Brief synthesis The property includes the two Prehistoric Rock Art Sites in the Côa Valley (Portugal) and Siega Verde (Spain), consisting of rocky cliffs carved by fluvial erosion and embedded in an isolated rural landscape in which hundreds of panels with thousands of animal figures (5,000 in Foz Côa, around 440 in Siega Verde) have been engraved over several millennia. The rock-art sites of Foz Côa and Siega Verde represent the most remarkable open-air ensemble of Palaeolithic art on the Iberian Peninsula within the same geographical region. Foz Côa and Siega Verde provide the best illustration of the iconographic themes and organization of Palaeolithic rock art, which adopted the same modes in caves and in the open air, thus contributing to a greater understanding of this artistic phenomenon. Together they form a unique place of the prehistoric era, rich in material evidence of Upper Palaeolithic occupation. Criterion (i): The rock engravings in Foz Côa and Siega Verde, dating from the Upper Palaeolithic to the final Magdalenian/ Epipalaeolithic (22.000 – 8.000 BCE), represent a unique example of the first manifestations of human symbolic creation and of the beginnings of cultural development which reciprocally shed light upon one another and constitute an unrivalled source for understanding Palaeolithic art. Criterion (iii): The rock art of Foz Côa and Siega Verde, when considered together, throws an exceptionally illuminating light on the social, economic, and spiritual life of our early ancestors. Integrity and authenticity The integrity of the property is expressed primarily by the homogeneity and continuity in development within the spatial limits of the engraved rock surfaces as well as by the adoption of the typical patterns of prehistoric paintings inside caves, thus confirming the argument for the integrity of this outdoor ensemble. The authenticity of the property is demonstrated by stylistic and comparative considerations, which also include the examination of artistic themes and organization of rock engravings in caves. The only doubts relate to the interpretation of certain animal figures (e.g. woolly rhinoceros, bison, megaceros deer, reindeer, and felines). Protection and management requirements Siega Verde is protected under various national laws for heritage protection and planning and has been declared a BIC (Bien de interés cultural – property of cultural interest). Protection has been implemented since the BIC designation. Management is delegated to the local action group ADECOCIR (Association for the Development of the Region in Ciudad Rodrigo). The ADECOCIR manager is responsible for the overall management and maintenance of Siega Verde, while security is provided by the Junta de Castilla y León, which is also responsible for the maintenance of equipment. The Junta de Castilla y León has developed joint programmes with the Portuguese institution of IGESPAR (Istituto de Gestão do Património Arquitectónico e Arqueológico – Institute for the Management of the Architectural and Archaeological Heritage), which is responsible for the Côa Valley site, with the object of studying and presenting Siega Verde and Côa Valley together.