Wallqaqucha (Quechua wallqa collar, qucha lake, "collar lake", also spelled Huallcacocha) is a lake in the Cordillera Blanca in the Andes of Peru. It is situated at a height of comprising an area of . It is located in the Ancash Region, Carhuaz Province, Shilla District, northwest of Wallqan. Wallqaqucha lies at the feet of Chiqllarahu, northeast and north of Awkishqucha and Chiqllaqucha.
References Ministerio de Agricultura, Autoridad Nacional del Agua, Inventario de Lagunas Glaciares del Perú, Huaraz 2014
escale.minedu.gob.pe - UGEL map of the Carhuaz Province (Ancash Region)