This lagoon is the end result of an ancient open-pit mining exploitation site and currently stands as an extraordinary ecological niche where flora and fauna species interact in a particular manner. The high value of these species is paramount in the overall understanding of the Terva Valley biodiversity.

The Lagoon of Brejo site includes wetlands, common alder and grey willow trees that are considered priority conservation habitats in Portugal. These refer to woodlands dominated by common alder wood (Alnus glutinosa), grey willows (Salix atrocinerea), and a significant quantity of birch trees (Betula albaIn a mosaic pattern with these woodlands are small areas dominated by sphagnum and an abundance of acidophilus reeds of J. acutiflorus, J. conglomeratus and/or Juncus effusus.
In terms of fauna, the lagoon is recognized as the area with the highest number of identified species, which is revealing of its high specific value. Some examples are the green sandpiper (Tringa ochropus), the mallard (Anas platyrhynchos), the common moorhen (Gallinula chloropus), the red squirrel (Sciurus vulgaris) and the fire salamander (Salamandra salamandra).
More about the Terva Valley Archaeological Park (TVAP) here.
More about TVAP Nature Route here.



