Sistema Ibérico

The Iberian System (Spanish: Sistema Ibérico, pronounced [sisˈtema iˈβeɾiko]), is one of the major systems of mountain ranges in Spain. It consists of a vast and complex area of mostly relatively high and rugged mountain chains and massifs located in the central region of the Iberian Peninsula, but reaching almost the Mediterranean coast in the Valencian Community in the east.

Iberian System
Sistema Ibérico
Highest point
Elevation2,313 m (7,589 ft)
Coordinates41°44′45″N 01°46′53″W
Location of the Sistema Ibérico in the Iberian Peninsula
CommunitiesAragon, Castile and León, La Rioja, Valencian Community, Catalonia and Castile-La Mancha
Age of rockTertiary
Type of rockNummulite limestone, marble and sandstone
Laguna Negra (Black Pond), Soria
Cerro del Padrastro hill close to Atienza, in the transition zone between the Sistema Ibérico and the Sistema Central
A griffon vulture
The Iberian wolf is a subspecies of grey wolf that is still found in some ranges of the system.
The marbled newt is common in humid areas of the system, especially in the northwestern region.

From the hydrographic viewpoint this system is of the highest relevance in the peninsula, for it separates the watersheds of most of the major rivers in Spain and Portugal, including the Ebro basin from the basins of the Douro, Tagus, Guadiana (Záncara-Gigüela), Júcar and Turia.

There are important mining areas in some of the ranges such as Sierra Menera, Sierra de Arcos and Sierra de San Just, making the system one of the chief mining regions in Spain since ancient times.[1][2] One of the comarcas of Aragon located in the Iberian System was given the name of Cuencas Mineras, lit. 'Mining Basins', since mining is the main activity in the comarca.[3]