The Sierra de Aracena is not very high and its mountains have a gentle, rounded shape. The height of most of the summits lies between . Its highest point is high
Cerro del Castaño. Other notable summits are Cerro de San Cristóbal and Cerro de Santa Bárbara , the latter located close to
Cortegana. The
Odiel and
Murtigas are the main rivers in the area of the range. The climate is relatively humid for Andalusian standards and there is a small village in most of the valleys. The undisturbed slopes of the mountains are mostly covered in forest, which is made up of
Chestnut,
Holm Oak and
Cork Oak trees. ==Protected areas==