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1947 Map of Patillas NE

Name: 1947 Topographic Map of Patillas NE
Creator: U.S. Geological Survey
Published: 1947
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1947

About this map

The Sierra de Cayey dominates this 1940s topographic study, defining the high-altitude divide between numerous municipalities in southeastern Puerto Rico. Much of the western territory is protected as the Bosque Insular de Carite, a landscape of dense tropical forest and steep ridgelines that feed the headwaters of major river systems. The Rio Grande de Patillas flows southward toward the coast, while the Rio Grande de Loiza begins its northward journey on the opposite side of the continental divide.

Remote outposts like Campamento Real provide rare evidence of human habitation within the forest reserve, while the surrounding peaks—including Cerro La Santa and Cerro Lucero—mark the highest elevations in the region. The map captures an intricate drainage network of creeks such as Quebrada Sonadora and Quebrada Hormiga, which carve through the terrain. The inclusion of Charco Azul highlights a specific natural water feature that has long been a landmark within this interior mountain environment.