The Sierra de Villuercas stretches for about 60 km in a roughly NNW/SSE direction in the southeast of Cáceres Province.

Southwards there is a straight low ridge aligned in a N/S direction connecting with the Sierra de los Golondrinos prolongation further south straddling river Guadiana.

There is an abundance of fossils of Ammonites, Trilobites, Brachiopods, Graptolites and Cloudinids in certain points of the range.

There are also interesting conglomerate geological formations made up of quartzite boulders and unstratified clays known locally as "rañas".

[3] This mountainous area was the scenario of the Battle of the Sierra Guadalupe, a bloody conflict at the beginning of the Spanish Civil War.