Before 1956, few scientists and explorers had been in El Pinacate y Gran Desierto de Altar, the most famous, the group MacDougal, Hornaday and Sykes who explored the western part of the mountain on 1907.
Före 1956, hade få forskare varit i El Pinacate y Gran Desierto de Altar, den mest kända, gruppen MacDougal, Hornaday and Sykes utforskade västra delen av berget 1907.