Introduction / History The Kalanguya tribes live in the mountain range from Caranglan in municipalities of Santa Fe, and a potion of Aritao, Ambaguio and Kayapa in Nueva Vizcaya province. Others are at the other side of the mountain range covering portions of the municipalities of San Nicolas and San Manuel in Pangasinan province, then upstream to the municipalities of Buguias and Kabayan in Benguet province then upward to the municipalities of Asipulo and Tinoc, both in Ifugao province.
The tribes practically live within the headwaters and forest reserves of the Agno river basin and the Magat river basin, which supplies water to Ambuklao, Binga and San Roque dams along Agno river and the Magat dam along the Magat river.
The Kalanguya ethno-linguistic group, also known as Ikalahan or people from the forest, maintains a unique cultural identity through language, customs and traditions, although they have been separated into several provinces through political boundaries.
The Kalanguyas occupy easthern Benguet as well as the western portions of the adjacent provinces of Ifugao and Nueva Viscaya.
The Ibaloys, Kankana-eys and the Kalanguya are culturally similar. The three tribes share a common belief sustem dominating their lifeways and observe common rituals. Their main difference are the dialects each speak.