A large mountainous area on the border with Portugal. The site contains well-preserved Mediterranean vegetation, with Quercus woodland, dehesas, grassland, scrub and maquis. The main human activities are livestock-farming, game hunting and cork harvesting (`Other' land-use).
An important site for breeding storks, raptors and steppic species.
Pressure/threats to key biodiversity
The main threats are hunting, disturbance by climbers and photo-graphers, the construction of a gas pipeline, and hunting pressure.
National None International Partial83,217 ha of IBA covered by Special Protection Area (Sierra de San Pedro, 83,217 ha).