ESO observatories topographic route map

ESO operates observatories at three sites in Chile: Chajnantor, Cerro Paranal and Cerro La Silla (“Cerro” is the Spanish word for “Mountain”). In addition, ESO will construct the Extremely Large Telescope (ELT) at Cerro Armazones, near Paranal. This topographic map highlights the region in Chile in which the observatories are located and gives a magnified view of that area, showing the airports nearest to the sites and the connecting car routes, as well as the location of ESO offices. For details about the ESO sites and how to visit them please go to our Contacts page and the Visits to ESO Sites page.