[2] Besides Marvão, Portalegre, Castelo de Vide, Arronches and Alegrete are other important towns in the area of the range.

It rises in the area of the Alto Alentejo to the west of the parallel Sierra de San Pedro across the border and is relatively lower than the latter.

Physiographically this range is part of the western end of the greater Montes de Toledo, one of the main mountain systems of the Iberian Peninsula.

On the lower slopes there are large areas of olive and maritime pine, as well as scattered patches planted with non-native species such as eucalyptus.

[4] The Serra de São Mamede Natural Park is a protected area located within the limits of the range.