Claim: Ferdinando Gaspard, Marino Tremonti, and Claudio Zardini hold the record for the first ascent up Obispo, the highest peak in El Altar, which is 1,590 meters higher than the second-highest peak Monja Grande.
Evidence: July 7, 1963, Ferdinando Gaspard, Marino Tremonti, Claudio Zardini Obispo 5,319 m (17,451 ft) Monja Grande 5,160 m (16,929 ft)