
The Rio Grande carves a sharp path through this arid borderland, defining the international boundary between the United States of America Estados Unidos Mexicanos. This 2022 survey captures the stark topography where the river meanders through the high desert, buffered by the protected lands of the Amistad National Recreation Area. The landscape is characterized by deep drainage ravines and high plateaus, reflecting the characteristic limestone terrain of the Edwards Plateau as it meets the river valley. With very little modern development shown, the map emphasizes the natural contours and the geopolitical line of the river itself, serving as a contemporary record of this remote stretch of the Texas-Mexico border.
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This is the sole edition of this map. No revisions or reprints were ever made.
1943 · Langtry
USGS Topo · 1:62,500
1943 · Shumla
USGS Topo · 1:62,500
1944 · Mouth Of Pecos
USGS Topo · 1:62,500
1958 · Del Rio
USGS Topo · 1:250,000
1964 · Del Rio
USGS Topo · 1:250,000
1972 · Zuberbueler Bend NW
USGS Topo · 1:24,000
1972 · Seminole Canyon
USGS Topo · 1:24,000
1972 · Zuberbueler Bend
USGS Topo · 1:24,000
1973 · Langtry
USGS Topo · 1:24,000
1973 · Shumla
USGS Topo · 1:24,000