Puncak ketonjolan tertinggi adalah sebuah puncak gunung dengan puncak topografi1.500 meter (4.900ft) atau lebih. Puncak tersebut juga disebut P1500.[1]
Terdapat sekitar 1.524 puncak tersebut di Bumi.[2]
Rob Woodhall (18 May 2016). "Relative hills on Earth". TheRelativeHillsofBritain. Ultra: peaks with a minimum prominence/relative height of 1500m. Steve Fry coined the term Ultra in the USA in the 1980s. His original term was 'ultra major mountain'. There are no Ultra summits in Britain. Hall of Fame entry minimum is 15.