The Serranía del Pinche are part of the Western Ranges of the Colombian Andes.

The mountains consist of several high peaks with small patches of isolated páramo and provide a corridor between the Pacific and Andean biogeographic regions.

An endemic hummingbird - the gorgeted puffleg (Eriocnemis isabellae) - is only found here and the population is considered to be critically endangered.

It includes the villages of El Naranjal, Las Pilas, La Belleza, Lusitania and Santa Clara within the municipality of Argelia.

This part of the Western Ranges is located south and west of Munchique, a national natural park of equal importance with regards to its high biodiversity.