
Cerro Torrecilla and Tallada anchor the high ridges where the boundaries of Patillas, Maunabo, and Yabucoa converge. This 1940s topography reflects a landscape dominated by its drainage systems, with the Rio Maunabo and its numerous tributaries, such as Quebrada Guayabo and Quebrada de las Avispas, carving deep into the southern mountains of Puerto Rico. The density of contour lines suggests a terrain that necessitated winding paths and dispersed rural settlement rather than a central urban grid.
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1945 · Punta Tuna
USGS Topo · 1:30,000
1946 · Patillas
USGS Topo · 1:30,000
1946 · Yabucoa
USGS Topo · 1:30,000
1946 · Guayama
USGS Topo · 1:30,000
1947 · Guayama NE
USGS Topo · 1:10,000
1947 · Punta Tuna NO
USGS Topo · 1:10,000
1947 · Yabucoa SE
USGS Topo · 1:10,000
1947 · Patillas SE
USGS Topo · 1:10,000
1947 · Punta Tuna NE
USGS Topo · 1:10,000
1947 · Patillas NE
USGS Topo · 1:10,000