The archaeological research carried out at the Cabezo de San Pedro since the end of the 1960s has highlighted the historical importance of the site on the national and international scientific scene. In 1977 and 1978, successive excavation campaigns brought to light levels from the end of the Bronze Age and, most importantly, a large construction, interpreted as a retaining wall, which revealed the presence, at the top of the hill, of a fortification built using a construction technique of Phoenician origin, superimposed on constructions from an earlier period.
This established a series of phases in which it was possible to study the evolution of the local material culture of the Bronze Age, to which oriental elements were incorporated as a result of the presence of Mediterranean navigators, commonly referred to as the Orientalising Period. The debate on the kingdom of Tartessos and the importance of Huelva within it, with its undoubted role in the production and commercialisation of precious metals during that historical period, thus gained momentum in historiography.