The Monchique Range is the southwesternmost mountain range of the Iberian Peninsula. It is covered in forest and parts of the range have been transformed into eucalyptus, pine and acacia plantations which are detrimental to the native forest cover. The range is named after the town of Monchique, located in the area. Caldas de Monchique is a well-known spa town with geothermal springs also located in this range.
Rivers Seixe, Aljezur and Odiáxere have their sources in this range.