the Mediterranean basin millions of years ago when it was more humid. Subdivision The Baetic System is divided into the following sub-chains: Penibaetic System The Penibaetic System includes the highest point in the peninsula, the 3,478 m high Mulhacén in the Sierra Nevada; other ranges and features are: Serranía de Ronda Rock of Gibraltar Sierra de las Nieves Sierra Blanca Cordillera Antequerana Sierra de Tejeda Sierra de Almijara Sierra de Alhama Sierra Nevada Sierra de Lújar Sierra de la Contraviesa Sierra de Cogollos Sierra de Gádor Sierra de Baza Sierra de los Filabres Sierra de Alhamilla Sierra Espuña Sierra Cabrera Sierra de las Estancias The Surco Intrabético comprises a series of valleys and depressions separating the Penibaetic from the Subbaetic System Subbaetic System The Subbaetic System occupies a central position within the Baetic System. Highest point high Peña de la Cruz in Sierra Arana. Sierra del Aljibe, includes the Alcornocales Natural Park Sierra de Grazalema Sierra de Gibalbín Sierras Subbéticas de Córdoba Sierra Elvira Sierra de Loja Sierra de Arana Sierra de Cogollos Sierra de la Alfaguara Sierra de Huétor Sierra Sur de Jaén overlapping with the Prebaetic System Prebaetic System The Prebaetic System is the northernmost feature of the whole Baetic System. Highest point 2,382 m high La Sagra. Sierra Mágina Sierra de la Sagra Sierra de Cazorla Sierra de Segura Sierra de Alcaraz Sierra de Castril Sierra de la Sagra Sierra del Taibilla Sierra de María, overlapping with the Penibaetic System Serra Mariola Montgó Massif Sierra de Bernia Penyal d'Ifac See also Geography of Spain Geology of the Iberian Peninsula Baetic Depression Tabernas Desert References External links Sierra Nevada Natural Park Sierra del Aljibe Parque Natural de la Sierra de los Filabres y comarca del Alto Almanzora Cuenca del Guadalquivir Physiographic provinces Environment of the Mediterranean Mountain ranges of Andalusia Mountain ranges of the Region of Murcia Mountain ranges of Castilla–La Mancha Mountain ranges of the Valencian Community