Embalse de Portaje Nature · Portaje, Valle del Alagón, Cáceres Image of Portaje, not of the place itself. Reservoir on the Rivera de Fresnedosa that attracts migratory birds such as white and black storks, Spanish imperial eagles, and ospreys. Photo: Herrero Uceda (CC BY-SA 4.0) What to see and do in Portaje