Calapo or Kallapu (Aymara for stairs close to the walls, a step of the stairs in a mine; buttress, wood to prop up, Hispanicized spelling Calapo) is a mountain in the Huallanca mountain range in the Andes of Peru which reaches an altitude of approximately . It is located in the Ancash Region, Bolognesi Province, Aquia District, east of the town of Pachapaqui.
References escale.minedu.gob.pe - UGEL map of the Bolognesi Province (Ancash Region)
Boletín de la Academía Peruana de la Lengua Vol. 51, N.º 51, June 2011, Lima, p.22