* USGS photo glossary: Maar* USGS: Maars and tuff cones== وصلات خارجية ==* List of Maar Volcanoes* La Vestide du Pal
==Gallery====Notes====References==* USGS photo glossary: Maar* USGS: Maars and tuff cones==External links==*List of Maar Volcanoes*La Vestide du Pal