1940s Maps of San Ildefonso, Coamo
Explore 6 historic maps of San Ildefonso from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how San Ildefonso's landscape evolved across the 1940s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1940s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring San Ildefonso's history through authentic maps from the 1940s. This is your window into the past.
San Ildefonso, Coamo maps
(6)- 1945 Map of Rio Descalabrado
1945 Rio Descalabrado1945 Print · USGSSanta Isabel and the surrounding southern foothills appear here in the final year of the war, showcasing a landscape of traditional haciendas and emerging rural schools. Trace ancestral roots through named estates like Hacienda Miranda or follow the waters of Lago Coamo and the Rio Descalabrado.3 unique versions available - 1946 Map of Coamo
1946 Coamo1946 Print · USGSThe town of Coamo and its surrounding haciendas are captured in the mid-1940s just as the historic mountain roads were modernizing. Genealogists and local historians can locate family estates like Hacienda Esmeralda and Hacienda San José or trace the route to Baños de Coamo. - 1947 Map of Rio Descalabrado SE
1947 Rio Descalabrado SE1947 Print · USGSSouthern Puerto Rico in the late 1940s reveals a landscape defined by sugar haciendas and vital water engineering. Researchers can trace the layout of traditional settlements like Poblado Rio Cañas Arriba or the infrastructure of the Canal de Juana Diaz. - 1947 Map of Rio Descalabrado NE
1947 Rio Descalabrado NE1947 Print · USGSThe mountainous interior of Puerto Rico near the Villalba and Coamo borders is documented here just after the war. Local historians can trace early rural life through features like the Escuela Segunda Unidad de Santa Catalina and the Zanja Blanca settlement. - 1947 Map of Coamo SO
1947 Coamo SO1947 Print · USGSSouthern Puerto Rico's historic thermal springs and plantation estates are captured here in the late 1940s as the agricultural landscape evolved. Researchers can locate named estates and settlements like Hacienda Esmeralda, Baños de Coamo, and Colonia Peñuelas. - 1947 Map of Coamo NO
1947 Coamo NO1947 Print · USGSThe mountain town of Coamo is captured in the mid-1940s, showing a traditional street grid and surrounding agricultural settlements. Genealogists and historians can trace the early footprints of San Diego and Cacao or the paths of the Rio Coamo.
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