Mount Iriga References Mount Iriga volcano, Philippines Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: IrigaThe land surrounding Mount Iriga is extremely rough and suitable mainly for abaca (Manila hemp) plantations. Agriculture is the main economic activity in the area. Inc. city, 1968. Pop. (2000) 88,893; (2010) 105,919. Read MoreThe land surrounding Mount Iriga is extremely rough and suitable mainly for abaca (Manila hemp) plantations. Agriculture is the main economic activity in the area. Inc. city, 1968. Pop. (2000) 88,893; (2010) 105,919. Read More