Huaca de Chena, also known as the Chena Pukara, allegedly one promaucae fortress, rather an astronomic observatory and sacred Huaca, used by them Incas, located on Cucara Point, small orographical eminence that stands out towards the south of Chena Mountain, in the basin of San Bernardo, commune of Calera de Tango, Maipo Province, Chile. Tala Canta Ilabe, was the last Inca who celebrated Inti Raymi in its Ushnu.