
The Rio Grande marks the international boundary between Texas and Tamaulipas in this South Texas borderland, where the landscape is defined by vast family-held pastures and ranching operations. The terrain is deeply etched by ephemeral drainages such as Arroyo Clareno and Arroyo del Tigre, which flow through the extensive E Gutierrez Pastures and Serapio Vela Pasture. These holdings reflect the heritage of the region's land grants, with many sites like San Antonio De La Huerta Ranch and Ranchito Arredondo serving as the primary hubs of activity in a sparse, arid environment.
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This is the sole edition of this map. No revisions or reprints were ever made.
1938 · Falcon
USGS Topo · 1:62,500
1938 · El Sauz
USGS Topo · 1:62,500
1938 · Cuevitas
USGS Topo · 1:62,500
1939 · Randado
USGS Topo · 1:62,500
1940 · Randado
USGS Topo · 1:62,500
1940 · Mogotes Hill
USGS Topo · 1:62,500
1942 · San Ygnacio
USGS Topo · 1:62,500
1949 · Mc Allen
USGS Topo · 1:250,000
1954 · McAllen
USGS Topo · 1:250,000
1956 · Mogotes Hill
USGS Topo · 1:62,500