The Mistery of Belicena Villca Castilian chickens in power of the Quilmes indians , chickens that had been gifted by Princess Quilla , which determined that the expeditionaries ' course was dangerously approaching the Pucará de Tharsy . The presence of chickens convinced Diego de Rojas that " other whites " lived in that region , just as Almagro believed , and drove him to cross the Valle Calchaqui along , that is , from North to South , to Tolombón and then , through Fuerte Quemado , until Punta de Balasto , then crossing the Nevados del Aconquija to go out at the height of Concepción del Valle Thafy . Fortunately , that route led the Spaniards too far South and there was no need to put to the test the magical defenses of the Pucará de Tharsy , now converted into a permanent residence of the Lords of Tharsis .
Stone Circles in Tafí del Valle , in the Province of Tucumán , Argentina . ( Above , the Circles hide among the vegetation . Below , other circles appear in the middle of a large hole , guarded by the Cerro Ñuñorco )
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