
The winding Rio Grande defines the international border on this 2002 survey of the Lower Rio Grande Valley. The landscape is characterized by its complex hydrology, featuring abandoned river meanders known locally as resacas, including Resaca De Los Fresnos and Resaca Del Rancho Viejo. Agricultural and conservation efforts dominate the area, with Reservoir No 1 and Reservoir No 2 providing water for irrigation, while the Lower Rio Grande Valley National Wildlife Refuge preserves critical habitat along the river banks.
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