Carta Preliminar 4273: Castro
Military map of Castro on Isla Grande de Chiloé and parts of Chiloé Continental. The whole of the map is based on the Trimetrogon method and was first published in 1950 and republished in 1967. The railway Castro-Ancud that was destroyed in the 1960 Valdivia earthquake is missing, speaking for a partial update of the map between the two publications.
OldMapsOnline CommunityInstituto Geografico Militar de Chile
1944
Republica de Chile