
The Rio Grande serves as the central artery and international boundary through this 1954 survey, separating South Texas from the Mexican states of Tamaulipas and Nuevo León. The map documents a period of significant agricultural and energy development, with numerous Oil fields and Gas fields dotting the landscape north of the border. In the Lower Rio Grande Valley, the concentration of settlements around McAllen, Edinburg, Pharr, and Mission illustrates the region's dense irrigation-based growth.
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This is the sole edition of this map. No revisions or reprints were ever made.
1914 · San Juan
USGS Topo · 1:48,000
1916 · San Juan
USGS Topo · 1:62,500
1921 · Falfurrias
USGS Topo · 1:125,000
1922 · La Sal Vieja
USGS Topo · 1:62,500
1923 · Armstrong
USGS Topo · 1:62,500
1928 · Sarita
USGS Topo · 1:125,000
1938 · Falcon
USGS Topo · 1:62,500
1938 · El Sauz
USGS Topo · 1:62,500
1938 · Agua Nueva
USGS Topo · 1:62,500
1938 · Sal Colorada
USGS Topo · 1:62,500