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1941 Map of Rio Grande

Name: 1941 Topographic Map of Rio Grande
Creator: U.S. Geological Survey
Published: 1941
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1941

About this map

Rio Grande sits at the heart of this coastal survey, where the river of the same name meets the Atlantic Ocean at Boca Herrera. The landscape is defined by the transition from the upland peaks of Cerro Bravo and Cerro El Faro down to the extensive wetlands of Cienaga La Picua. Along the coast, a series of prominent headlands including Pta Miquillo and Pta Picua shelter the waters of Ensenada Comezon.

The agricultural character of the era is evident in the numerous named colonias, such as Colonia Blasini, Colonia Fortuna, and Colonia Miñi, which suggest a land organized around large estates and sugar production. These settlements, alongside Poblado Honduras and Poblado Mediania Alta, are linked by a network of roads and the Espiritu Santo river system, providing a detailed view of the rural and industrial geography of northeast Puerto Rico before mid-century modernization.