
Albercas de San Felipe Spring serves as a central hydrological point in this corner of the South Texas brush country, where three counties — Webb, Zapata, and Jim Hogg — converge. The landscape is defined by its intermittent drainage network, with Agua Azul Cr and Albercas Cr carving through the terrain before meeting the Arroyo Grande further south. This modern survey illustrates the expansive ranching infrastructure that has long sustained the regional economy, including the Jacalon Ranch Airport and an extensive network of private and county routes like Ranch Rd 649 and Casa Blanca Ranch Rd. The confluence of county boundaries here highlights the logistical challenges of the high plains, where water sources and ranch access remain the primary markers of human presence.
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This is the sole edition of this map. No revisions or reprints were ever made.
1939 · Bruni
USGS Topo · 1:62,500
1939 · Randado
USGS Topo · 1:62,500
1940 · Aguilares
USGS Topo · 1:62,500
1940 · Randado
USGS Topo · 1:62,500
1940 · Mogotes Hill
USGS Topo · 1:62,500
1956 · Mogotes Hill
USGS Topo · 1:62,500
1956 · Laredo
USGS Topo · 1:250,000
1972 · Armstrong Ranch
USGS Topo · 1:24,000
1972 · Albercas Ranch
USGS Topo · 1:24,000
1972 · Bruni SE
USGS Topo · 1:24,000