The Rio Grande snakes through a complex network of oxbow lakes and resacas at the southernmost tip of Texas in this 2019 survey. This specific reach of the river defines the United States of America Estados Unidos Mexicanos international boundary, where the shifting hydrology of the Rio Grande Delta creates a landscape of isolated water bodies and intricate wetlands. The map illustrates the natural meandering process of the river before it reaches the Gulf of Mexico, highlighting the fragmented shoreline and the distinct geographical border between Cameron County and Tamaulipas.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Palmito Hill
USGS Topo · 1:24,000
1930 · East Brownsville
USGS Topo · 1:24,000
1936 · Palmito Hill
USGS Topo · 1:31,680
1936 · Mouth Of Rio Grande
USGS Topo · 1:31,680
1936 · East Brownsville
USGS Topo · 1:31,680
1936 · Southmost
USGS Topo · 1:31,680
1953 · Brownsville
USGS Topo · 1:250,000
1955 · Mouth Of Rio Grande
USGS Topo · 1:24,000
1955 · Mouth Of Rio Grande
USGS Topo · 1:62,500
1955 · Palmito Hill
USGS Topo · 1:24,000