
The urban and agricultural landscape of the Lower Rio Grande Valley is defined here by the dense network of irrigation roads and drainage systems south of the Donna and Alamo corridor. This modern survey illustrates the proximity of several distinct colonias and settlements, including Midway Village Colonia, South Alamo, and Scissors, which are interspersed among commercial corridors and agricultural tracts. The geography is fundamentally shaped by water management, anchored by the Donna Reservoir 1 and the expansive Main Floodway to the south.
62 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
1949 · Mc Allen
USGS Topo · 1:250,000
1953 · Brownsville
USGS Topo · 1:250,000
1954 · McAllen
USGS Topo · 1:250,000
1956 · Mercedes
USGS Topo · 1:24,000
1956 · Progreso
USGS Topo · 1:24,000
1956 · Brownsville
USGS Topo · 1:250,000
1956 · Port Isabel
USGS Topo · 1:250,000
1957 · Edcouch
USGS Topo · 1:24,000