
The colonial fortifications of Sitio Historico Nacional and Fuerte San Cristobal anchor the northern coastline of San Juan, where the historic core gives way to rapid mid-century expansion. This 1960s survey records the dense urban density of San Juan Antiguo and the commercial corridors along Ave Ponce de Leon, while showing the suburban transition into Monacillo Urbano and Sabana Llana Sur.
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3 editions found
1940 · Carolina
USGS Topo · 1:30,000
1941 · Bayamon
USGS Topo · 1:30,000
1941 · San Juan
USGS Topo · 1:30,000
1941 · Carolina
USGS Topo · 1:30,000
1946 · Aguas Buenas
USGS Topo · 1:30,000
1946 · Naranjito
USGS Topo · 1:30,000
1946 · Gurabo
USGS Topo · 1:30,000
1947 · Carolina
USGS Topo · 1:30,000
1947 · Aguas Buenas NO
USGS Topo · 1:10,000
1947 · Bayamon
USGS Topo · 1:30,000