Cerro Calán

Cerro Calán is a mountain near Santiago that rises to 867 meters above sea level. A 1.2-meter radio telescope sits at the summit and collects data on cosmic carbon monoxide and dense molecular clouds.

The summit gained scientific importance in 1962 when Soviet astronomers established an observation post with several telescopes there. This early foundation set the stage for ongoing research activity at the site.

The University of Chile runs an observatory at the summit and offers astronomy classes to the public since 2011. This activity turns the place into a gathering spot for people interested in exploring the sky.

The summit is reached via a hiking trail that starts from the surrounding neighborhoods. The best time to visit is in early morning hours when the air is clearer and visibility improves.

The name comes from the Quechua word 'q'ala', meaning 'completely bare' and referring to the mountain's sparse appearance. This linguistic connection reveals the historical roots of the Andes region and its indigenous naming traditions.

GPS coordinates: -33.39859,-70.53710

Latest update: December 10, 2025 16:25