Q:Springerville volcanic field - Springerville volcanic field is a monogenetic volcanic field located in east-central Arizona USA. The field consists of 405 discrete vents covering approximately 3000 square kilometers (1200 sq mi) and is the third-largest such field in the continental United States only the San Francisco volcanic field and Medicine Lake volcanic field are larger. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Natural Place