Note 38 — Letters from Father Mateo Gisbert to the Reverend Fathers and Brothers of Veruela
Reading edition
The Atás (from itaas, ataas, atás, “those who live on the heights”) are the indigenous natives who generally live about the western districts of Mount Apo.38 They are warlike and fight against the Moros and the Bagobos. The Atás extend to the northwest of Dávao, and in their ramifications finally reach to the borders of the Bagobos, Guiangas, Mandayas, and even to the Subanos and the Monteses of Cagayan and Maguindánao. The number of this tribe is unknown, even approximately, but it is conjectured with foundation that it must be very numerous. In the map they occupy the place corresponding to color no. 7.