
The growing urban core of Bayamón sits at the intersection of industry and coastal marshlands in this late 1950s survey. To the north, the U S Naval Reservation and U.S. Military Res dominate the landscape near Pta Salinas, while the Ensenada de Boca Vieja defines the coastline between Isla de las Palomas and the historical fortification site at Isla de Cabras. Inland, the agricultural roots of the region are still visible through the Central Juanita sugar mill and the sprawling plantation lands of Hato Tejas.
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1940 · Vega Alta
USGS Topo · 1:30,000
1941 · Bayamon
USGS Topo · 1:30,000
1941 · San Juan
USGS Topo · 1:30,000
1946 · Aguas Buenas
USGS Topo · 1:30,000
1946 · Corozal
USGS Topo · 1:30,000
1946 · Vega Alta
USGS Topo · 1:30,000
1946 · Naranjito
USGS Topo · 1:30,000
1947 · Corozal NE
USGS Topo · 1:10,000
1947 · Aguas Buenas NO
USGS Topo · 1:10,000
1947 · Bayamon
USGS Topo · 1:30,000