The museum born from the New Museology is a dynamic and interventional museum, with influence on the dynamics of the region where it is located. In addition to preserving heritage, museums today have a close relationship with the surrounding community and contribute to the socio-economic and cultural development of the territory. In the face of major changes in the landscape and society, museums' ability to intervene is even more important in order to ensure that major changes maintain a

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... ion with the past and that they translate positively into the future of the community and its territory. This article intends to make known the action of the Ribeira de Pena Ecomuseum in the construction process of the Tâmega Dams, a process of profound changes for the territory and for the community of the region, an action centered on the preservation of the heritage representing the local identity and valuing cultural assets as an opportunity for local development in the future.