Hvannadalshnjúkur (pronounced ) or Hvannadalshnúkur is a pyramidal peak on the northwestern rim of the summit crater of the Öræfajökull volcano in Vatnajökull National Park, Iceland. Its summit is the highest point and the only Ultra-prominent peak in the country.
Geography
An official measurement in August 2005 established the height of the mountain as . Earlier surveys had measured a height of .