1941 Map of San Sebastian

About this map

San Sebastian serves as the focal point for this survey of western Puerto Rico, where the dense network of barrios and watercourses reveals a landscape defined by its agricultural and municipal boundaries. The map documents numerous traditional districts including Piedras Blancas, Calabazas, and Guayataca, while the northern edge is dominated by the waters of Lago Guajataca. In the town center, community life is anchored by landmarks like the Iglesia Santa Ana and the Iglesia Presbiteriana, alongside vital infrastructure such as the Acueducto de San Sebastian. To the south, the terrain descends toward the Rio Grande de Anasco, intersected by countless quebradas such as Quebrada Culebrinas and Quebrada Lajas. This mid-century record provides a clear view of the rural settlement patterns before modern expansion altered the original barrio lines.