What is Ultra-prominent peak?
[[File:Map of Ultras.png|thumb|360px|right|Map of Ultras worldwide]] An '''ultra-prominent peak''', or '''Ultra''' for short, is a [[mountain]] [[summit]] with a [[topographic prominence]] of {{convert|1500|m|ft}} or more.<ref>{{cite book|first=Adam|last=Helman|title=The Finest Peaks: Prominence and other Mountain Measures|publisher=Trafford|year=2005|isbn=1-4120-5994-1}}</ref> It is also called a '''P1500'''.<ref>{{cite web|url=https://www.rhb.org.uk/marhofn/marhofn316/marhofn31621.htm|title=Relative hills on Earth|publisher=TheRelativeHillsofBritain|author=Rob Woodhall|date=18 May 2016}}</ref> == Lists of Ultras == * [[List of mountain peaks by prominence]] * [[List of Ultras of Canada]] * [[List of Ultras of Mexico]] * [[List of Ultras of the United States]] == Related pages == * [[List of highest mountains]] == References == {{reflist}} [[Category:Mountains]]