1950 Map of Quebradillas SO

About this map

Montañas de Planas dominates this mid-century topographic survey, revealing the complex interior terrain of northwestern Puerto Rico. The landscape is defined by the sharp descent into the Valle de las Quebradas and the winding course of the Río Guajataca as it carves through the limestone karst. Small agricultural clusters like Pueblito de Ponce are situated along the ridgelines, connected by a network of secondary roads and trails that navigate between the steep slopes. High points such as Cerro de la Bandera and Cerro del Judío serve as local landmarks within the barrios of Llanadas, Robles, and Aibonito. This detailed rendering, supervised by Jorge J. Jiménez, captures the rural settlement patterns before modern industrial expansion, documenting the precise municipal boundaries between Isabela and San Sebastián.