Eonavian or Galician-Asturian, (official name by Act 1/1998, March 23 of Principality of Asturias) (autonym: eonaviego, gallego-asturiano; ; ) is a term used to refer to a set of Romance dialects or falas whose linguistic dominion extends into the zone of Asturias between the Eo and Navia rivers (or more specifically the Eo and Frexulfe rivers). These dialects have been variously classified as the northeastern varieties of Galician, as a linguistic group of its own, or as a Galician dialect of transition to the Astur-Leonese group.