|Map of Calatagan and the Verde Island Passage. Source: NLP Digital Collections.|
The version seen above has been resized to 2000 x 1548 pixels from the original 8651 x 6696 pixels for quicker download from Batangas History.
To view the original and larger file (4.21 MB) from the National Library of the Philippines Digital Collections, please click this link → Original File.
The following information is contained in the map itself:
Edition 1 BTSM (First Printing 1961) Published by the Board of Authority of Technical Surveys and Maps in Cooperation with the Department of National Defense.
Sources: US Army Map Series 711, Compiled in 1956 by Photogrammetric Methods 1947-1953 Photographs and Others.
Map Scale: 1:50,000
Notes and references:
“Calatagan,” Cartographic Materials, online at the National Library of the Philippines Digital Collections.