
El Yunque National Forest anchors the southeastern corner of this modern survey, where the peaks of Cuchilla el Asomante rise above the complex river networks of the Río Canóvanas and Río Gurabo. The landscape transitions from the dense urban developments of Carolina and Canóvanas in the north to the higher elevations and rural sectors of Gurabo in the south. This transition reveals a pattern of modern residential expansion through Loíza Valley and Buenaventura contrasted with the traditional, scattered settlements found in the southern ridges.
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This is the sole edition of this map. No revisions or reprints were ever made.
1940 · Carolina
USGS Topo · 1:30,000
1941 · San Juan
USGS Topo · 1:30,000
1941 · Rio Grande
USGS Topo · 1:30,000
1941 · Carolina
USGS Topo · 1:30,000
1945 · El Yunque
USGS Topo · 1:30,000
1946 · El Yunque
USGS Topo · 1:30,000
1946 · Aguas Buenas
USGS Topo · 1:30,000
1946 · Humacao
USGS Topo · 1:30,000
1946 · Gurabo
USGS Topo · 1:30,000
1946 · Juncos
USGS Topo · 1:30,000