Monte Guilarte anchors this high-elevation interior landscape where several of the island's major river systems originate. The terrain is a complex network of steep ridges and deep valleys, defining the boundaries between several municipalities including Utuado, Lares, and Adjuntas. The central feature, Lago Guayo, dominates the western portion of the sheet, while the Adjuntas Airport is situated on a relatively rare flat stretch in the east. Numerous family-named roads and trails, such as Camino Damian Rodriguez and Camino Efrain Rivera, provide access to isolated agricultural sectors like Sector Palo Seco and Sector Novillo. The map reveals the intricate drainage patterns of the Rio Tanamá and Rio Yahuccas, showing how the local road network, including PR-128 and PR-135, follows the natural contours of the Central Mountain Range.
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This is the sole edition of this map. No revisions or reprints were ever made.
1937 · Sabana Grande
USGS Topo · 1:25,000
1938 · San Sebastian
USGS Topo · 1:20,000
1941 · San Sebastian
USGS Topo · 1:30,000
1941 · Sabana Grande
USGS Topo · 1:30,000
1946 · Maricao
USGS Topo · 1:30,000
1946 · Utuado
USGS Topo · 1:30,000
1946 · Bayaney
USGS Topo · 1:30,000
1946 · Yauco
USGS Topo · 1:30,000
1946 · Monte Guilarte
USGS Topo · 1:30,000
1946 · Penuelas
USGS Topo · 1:30,000