The Iberian System is a geological formation located on the Iberian Peninsula, which includes parts of Spain and Portugal. It is characterized by a series of mountain ranges, including the Sierra de Guadarrama and the Sierra de Gredos, formed primarily during the Hercynian orogeny. This system plays a crucial role in the region's topography and climate. The Iberian System is significant for its rich biodiversity and various ecosystems. It serves as a habitat for numerous species, some of which are endemic to the region. Additionally, the system influences local agriculture and water resources, making it vital for the economies of the surrounding areas.