
The American RR tracks trace the western coastline from Puntas down through the Pueblo district, serving as a vital artery for the region's agricultural economy in the late 1930s and 1940s. A dense network of sugar-related settlements known as colonias, such as Colonia Libertad and Colonia Enriqueta, are clustered near the lower reaches of the Rio Grande de Anasco. This area is dominated by the industrial presence of Central Igualdad, suggesting a landscape deeply integrated with the sugarcane industry and the rail system required to transport it.
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1937 · Aguadilla
USGS Topo · 1:20,000
1937 · Moca
USGS Topo · 1:20,000
1938 · Alto Sano
USGS Topo · 1:20,000
1939 · Mayaguez
USGS Topo · 1:30,000
1941 · Moca
USGS Topo · 1:30,000
1941 · Rincon
USGS Topo · 1:30,000
1941 · Rincon
USGS Topo · 1:30,000
1941 · Rosario
USGS Topo · 1:30,000
1942 · Moca
USGS Topo · 1:30,000
1942 · Central La Plata
USGS Topo · 1:30,000