page_title: Calanasan
hierarchical_section_title: Calanasan
caption_attribution_description: English: Map of Apayao showing the location of Calanasan
context_page_description: Calanasan, officially the Municipality of Calanasan, is a 1st class municipality in the province of Apayao, Philippines. According to the 2015 census, it has a population of 12,604 people.
  Its land area is 1,256.15 square kilometres, making it the largest municipality in the province. Calanasan is the source of the Apayao River which empties into the South China Sea and is the only navigable river in Apayao.
context_section_description: Calanasan, officially the Municipality of Calanasan,  (Ilocano: Ili ti Calanasan; Tagalog: Bayan ng Calanasan), (formerly known as Bayag, meaning "slow") is a 1st class municipality in the province of Apayao, Philippines. According to the 2015 census, it has a population of 12,604 people.
  Its land area is 1,256.15 square kilometres (485.00 sq mi), making it the largest municipality in the province. Calanasan is the source of the Apayao River which empties into the South China Sea and is the only navigable river in Apayao.
caption: Map of Apayao with Calanasan highlighted
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