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Citlaltépetl (sētlältāpetəl) or Orizaba (ōrēsä´bä), peak, 18,700 ft (5,700 m) high, in the Cordillera de Anáhuas, E Mexico, on the Veracruz-Puebla border. It is the highest peak in Mexico and the third highest in North America. This snowcapped volcano is inactive; the last eruption occurred in 1687. The peak was first climbed in 1848.