Despeñaperros is a natural mountain pass connecting Andalucia with Castilla la Mancha through the Sierra Morena mountain range. The rock structure forms a dramatic landscape with vertical cliffs and unusual rock formations. Los Organos is one such formation of quartzite rock taking the form of giant organ tubes.
The Sierra de Andujar natural park is located in the central part of the Sierra Morena and is a semi-mountainous area with peaks ranging between 500 to 1290m, the highest peak being Burcio del Pino.
The natural park of Sierra de Cardeña y Montoro is a combination of gentle hills with outcrops of batholithic boulders, forest and meadows. The highest point being 828m at La Colmena. It is located on the north eastern border of Cordoba and is separated from the natural park of Andújar in Jaen by the deeply ravined river Yeguas. There are cultivated fields along with Cork and Holm oak forests plus dense natural Mediterranean scrub.
Oak woodland in Hornachuelos offers protection to endangered species such as Black vulture, Lynx, Black stork and Bonelli’s eagle.
This parkland covers the eastern end of the Sierra Morena, close to Cordoba. The western part of this range is divided into a further two parks as it is dissected by provincial borders, thus forming an extended belt of protection. Sierra Norte de Sevilla is within the province of Sevilla. Sierra de Aracena y Picos de Aroche is in Huelva province. There are no high peaks, rather a more gentle outline crossed by many rivers, with several large reservoirs. (The river Bembézar and its reservoir cut through the centre of the park.)