Exemplos de reabilitação de monumentos megalíticos do norte do Alentejo - Portugal

This communication will be presented rehabilitation examples of megalithic monuments resulting from over 30 years of archaeological investigations carried out in northern Alentejo (Portugal). Being the oldest megalithic structures monumental architectural buildings of humanity pathologies that present are multiple and very different from each other. Typically, the recoveries of these structures have to be preceded by an archaeological nature of action to identify and recognize the best solutions for their preservation. Thus, this communication will present the results of the work carried out in different dolmens and menhirs, with timelines ranging from the 6th and 3th millenniums before Christ.