Geological map
Cabeço Mines, Casalinho, Maiorga, Alcobaça, Leiria, Portugal
This is the geological map of the region where the ancient sulphur mines were located, specifically in the orange spot to the center right, corresponding to the volcanic breccias of Casalinho.
Extract from the geological map, sheet 26B – Alcobaça, on a 1/50000 scale.
© Rui Nunes 2020