Machu Picchu Base joined the Antarctic Treaty as a member adherent, with voice and vote in making all decisions related to the southern area. However, in agreeing to the Treaty, Peru reserved its rights to territory and influence over Antarctic climate, ecology and marine biology, in addition to a continuity of geology and historical links. In 1989 when Machu Picchu Base was founded, it acquired the status of advisory member within the Antarctic Treaty. In 1993 the Constituent Assembly extended the declaration of 1979: The Peruvian government created a National Commission for Antarctic Affairs (CONAAN) in July 1983 as a technical body composed
Machu Picchu then crossed a pass and into the Pampaconas Valley where he found more ruins heavily buried in the jungle undergrowth at Espíritu Pampa, which he named "Trombone Pampa". As was the case with Machu Picchu, the site was so heavily overgrown that Bingham could only note a few of the buildings. In 1964, Gene Savoy further explored the ruins at Espiritu Pampa and revealed the full extent of the site, identifying it as Vilcabamba Viejo where the Incas fled after the Spanish drove them from Vitcos. Bingham returned to Machu Picchu in 1912 under the sponsorship of Yale University and