Very comprehensive reply - thanks. I have visted the Castro Marim Camara Website and found the PDM, doesn't make sense to me. I wonder if you could have a look at couple sections for me a nd translate. The URL is below, there are references to Rio Seco in Artigo 33 Âmbito, usos e categorias
Áreas urbanas de nível III:
and Artigo 36.° Áreas urbanas de nível II


Município de Castro Marim :: uma Terra com História


Does this mean the area around Rio Seco is calssified as Urban

Thanks in advance