When the Spaniards arrived, the town of Cumbazas existed in the valley of Tarapoto. Its inhabitants were exterminated by war when they presented resistance. According to legend, a family which took part in the fight survived this disaster. Once they were exterminated, their children (a boy and a girl) took refuge in the hills; the Apu God took pity on the orphans, and made the boy a strong and robust bull and the girl a beautiful butterfly; they both took refuge in the forests of the cerro escalera. The pain and sadness produced in them uncontrollable crying. The bull cried so much that its tears became the Shilcayo River. The beautiful and native butterfly came down from the hills to observe the ruin of her town. A Spanish archer was fascinated by her beauty when he saw her and did not hesitate to catch her, and the wounded butterfly fell to the ground becoming the lagoon of Suchiche, which is the origin of Tarapoto.