Peñas Blancas () consists of a crag and three vertical rock faces located on the western slopes of the Central Cordillera of the Andes near Calarcá. The bright white color of the rock walls is due to the presence of calcite and limestone. There are a large number of solutional caves and rock shelters inside the cliff, but access is very difficult. The caves are believed by some local people to be the location of a legendary treasure hidden by an indigenous Pijao tribal leader, the Cacique Calarcá (from whom the nearby town derives its name), during his battle against the Spanish colonialists