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The Meso-Cordilleran languages are a group of languages spoken in or near the Cordillera Central mountain range in Northern Luzon. Its speakers are culturally very diverse, and include the lowland Pangasinense, the Igorot highlanders (including Bugkalot), and Alta-speaking Aeta groups.
Himes, Ronald S. 2005. The Meso-Cordilleran Group of Philippine Languages. In Hsiu-chuan Liao and Carl R. Galvez Rubino (eds.), Current Issues in Philippine Linguistics and Anthropology: Parangal kay Lawrence A. Reid, 81-92. Manila, Philippines: Linguistic Society of the Philippines and SIL Philippines.