The Peñón de Zaframagón is an impressive 600m-high limestone outcrop or crag (peñón) with sheer cliffs located to the north of the Sierra de Lijar close to the Seville/Cadiz provincial border. There are many natural springs in the 448ha reserve. Apart from its geological importance, the reserve is home to one of Andalucía's most significant colonies of Griffon vultures.

There has been a human settlement on the site of Olvera for more than two thousand years. Archaeological findings suggest this verdant agricultural region north-east of Ronda was an important area for settlement as far back as the Palaeolithic era, at least twelve thousand years ago.