1960 Map of Isabela

This historical map portrays the area of Isabela in 1960, primarily covering Isabela Municipio as well as portions of Aguadilla Municipio. Featuring a scale of 1:20000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Isabela region at the time. Published in 1971, it is one of 4 known editions of this map due to revisions or reprints.