Mount Iriga References Contents Mount Iriga volcano, Philippines Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:elevation In 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 More