The growing communities of Weslaco and Mercedes anchor this landscape in the Rio Grande Valley, organized by an extensive grid of numbered roads such as Mile 13 N and Mile 10 N. The region is defined by its complex water management systems, including the North Floodway, the Arroyo Anacuitas, and the Mercedes Floodway Bridge. These features underscore the importance of flood control in a terrain marked by natural water bodies like Campacuas Lake and the Arroyo Colorado.
86 named features on this map. Tap any name to fly to it.
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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
1929 · Santa Rosa
USGS Topo · 1:24,000
1929 · Santa Maria
USGS Topo · 1:24,000
1929 · La Feria
USGS Topo · 1:24,000
1933 · Santa Rosa
USGS Topo · 1:31,680
1936 · La Feria
USGS Topo · 1:31,680
1936 · Santa Maria
USGS Topo · 1:31,680
1949 · Mc Allen
USGS Topo · 1:250,000
1953 · Brownsville
USGS Topo · 1:250,000