unknown mountains on postage stamps
Chile 1962, Maule Valley.
Chile 1972, "150 years Military Academy".
F5-E Tiger II over the Andes.
The stamp was issued in the series "50 Years Chilean Air Force".
Chile 1999, Alexander Humboldt.
Chile 2001, Bernardo O'Higgins.
Andes mountains, (enlargement, please see below)
Chile 2005, "Visit of Pope John Paul II".
Expedition conducted by AL FILO in the Andes, where a computer program (formed by Laureano Married, Jesus Gonzalez and Bob Green Joswick) crossed this ridge on globe (free flight) in 1990.
The stamp and labels were issued in the seies "Al filo de lo imposible I".
In the 90’s the team of Al Filo de lo Imposible flew over the highest volcanoes on earth, some of them in the Chilean region of Antofagasta, which is depicted on the stamp.
The stamp and labels were issued in the seies "Al filo de lo imposible II".
Chile 2013, Taapaca volcano (Nevados de Putre) ?