The Rio Grande serves as the primary geographic and political landmark on this 2019 survey, carving through the arid borderland terrain where the United States meets Mexico. The map illustrates a sparse landscape defined by shifting watercourses and the prominent international boundary of Usa Eum. While the sheet is largely characterized by intermittent water features and a network of unpaved tracks, it provides a precise technical look at the physical topography and the immediate vicinity of the river corridor. This document represents a modern cartographic record of the Webb County border region as managed by the U.S. Geological Survey and the Department of the Interior.
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This is the sole edition of this map. No revisions or reprints were ever made.
1933 · Becerra Creek
USGS Topo · 1:62,500
1956 · Islitas
USGS Topo · 1:62,500
1956 · Laredo East
USGS Topo · 1:62,500
1956 · Laredo
USGS Topo · 1:250,000
1965 · Laredo West
USGS Topo · 1:24,000
1965 · Laredo East
USGS Topo · 1:24,000
1979 · Isla Mesteno
USGS Topo · 1:24,000
1979 · Laredo South
USGS Topo · 1:24,000
1979 · O'Keefe Lake
USGS Topo · 1:24,000
1985 · Laredo
USGS Topo · 1:100,000