Sierra de Perijá

an Andean range on the Colombia-Venezuela border; the northern spur of the Cordillera Oriental of Colombia. The Sierra de Perijá includes the Serranía de Motilones, the Serranía de Valledupar, and the Montes de Oca. The range is about 300 km long and has elevations to 3,540 m. It is composed of metamorphic and sedimentary rock. The slopes are covered with tropical and temperate rain forests.