The Sierra de Cogollos is a mountain range of the Baetic System in Granada Province, Andalusia, Spain.

Its highest point is the 1,889 m high Peñón del Majalijar peak.

To the north the narrow Blanco River valley separates it from the Sierra Arana and to the south, another narrow valley, carved by the Bermejo River marks the limit with the lower Sierra de la Yedra range.

This mountain range includes the Peñón de la Mata, a limestone mountain topped by a massive rocky outcrop that is 1,669 metres (5,476 ft) in height and that towers above Cogollos Vega town.

[5] Geologically the Sierra de Cogollos belongs to the Baetic System and is made up mainly of sedimentary rocks from the Triassic, Jurassic and Cretaceous.