1957 Map of San Juan

This historical map portrays the area of San Juan in 1957, primarily covering San Juan Municipio as well as portions of Bayamón Municipio, Carolina Municipio, Guaynabo Municipio, Trujillo Alto Municipio, and Cataño 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 San Juan region at the time. Published in 1959, it is the sole known edition of this map.