
The Balcones Escarpment serves as a dramatic geological divide on this mid-century survey, separating the high Edwards Plateau from the fertile plains of South Texas. At the center of this landscape, San Antonio appears as a burgeoning hub of military and aviation infrastructure. The city is surrounded by a formidable ring of installations, including Fort Sam Houston (Army), Kelly AFB, Lackland AFB, and Brooks AFB. To the northeast, Randolph AFB and the Camp Bullis Military Reservation further underscore the area's strategic importance during the Cold War era.
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3 editions found
1887 · Blanco
USGS Topo · 1:125,000
1893 · Rock Springs
USGS Topo · 1:125,000
1893 · Nueces
USGS Topo · 1:125,000
1894 · Fredericksburg
USGS Topo · 1:125,000
1894 · Kerrville
USGS Topo · 1:125,000
1894 · Blanco
USGS Topo · 1:125,000
1896 · Nueces
USGS Topo · 1:125,000
1896 · Brackett
USGS Topo · 1:125,000
1896 · Austin
USGS Topo · 1:125,000
1897 · Brackett
USGS Topo · 1:125,000