
Rio Grande waters define the southwestern boundary of this South Texas landscape, where the international border separates the United States of America from Mexico. The terrain is characterized by a network of drainage systems, including San Ambrosia Creek, Chupadera Creek, and Jardin Creek, which carve through the brush country of Webb, Dimmit, and Maverick Counties. Notable freshwater sources like Chupadera Spring and Sullivan Spring provided essential resources for the region's ranching operations. The presence of specialized aviation infrastructure such as the Faith Ranch Airport and Chupadera Ranch Airport reflects the logistical needs of managing large-scale ranching estates. Prominent landmarks like Cathedral Rock and man-made features such as Loza Tank and Briscoe Ranch Lake serve as key navigational points in this sparsely populated borderland territory.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Cotulla
USGS Topo · 1:125,000
1940 · Asherton
USGS Topo · 1:62,500
1940 · San Loranzo Creek
USGS Topo · 1:62,500
1940 · Chupadera
USGS Topo · 1:62,500
1941 · Botella Creek
USGS Topo · 1:62,500
1953 · Crystal City
USGS Topo · 1:250,000
1955 · Crystal City
USGS Topo · 1:250,000
1957 · Botella Creek
USGS Topo · 1:62,500
1958 · Eagle Pass
USGS Topo · 1:250,000
1961 · Crystal City
USGS Topo · 1:250,000