This short film, probably commissioned by the Hidro-Eléctrica do Cávado, shows several aspects of the dams’ network construction in that hydrographic basin, with a commentary read by Fernando Pessa. “Do céu ao rio” was premiered at the Odéon cinema in Lisbon, on January 29, in 1964, but it is in a more fragile heritage situation since its original image negative is not located.

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