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1962 Map of San Juan SE

Name: 1962 Topographic Map of San Juan SE
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

Meandering loops of the Rio Grande define the international border in this early 1960s survey of the Lower Rio Grande Valley. The landscape is marked by a unique series of "bancos"—tracts of land created by river shifts—including Monterrey Banco No 89, Longoria Banco No 39, and San Juan del Rio Banco No 40. These features illustrate the complex history of land ownership and boundary adjustments between Texas and Tamaulipas.

Agricultural and industrial development is evident through the extensive Main Canal network and the presence of a significant Gas Field. Local history is anchored by family and community landmarks such as Webber Cem and Asadores Cem. The infrastructure for water management is highlighted by the Donna Pumping Station and the wide Main Floodway, reflecting the region's reliance on controlled irrigation and flood protection near Llano Grande Lake.