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1972 Map of San Isidro

Name: 1972 Topographic Map of San Isidro
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

The San Isidro area of South Texas is defined by a dense network of family cemeteries and intensive petroleum extraction as it appeared in the early 1970s. This landscape across the Starr Co Hidalgo Co boundary is dotted with numerous small burial grounds, including the Old Santa Elena Cem, Montalvo Cem, and Rancho Viejo Cem, which often represent the last remaining markers of early ranching families in the region.

Industrial development is heavily concentrated within the North Sun Oil Field and the La Reforma Oil and Gas Field, where a complex grid of pipelines, pumping stations, and drill holes overlays the brushland. While San Isidro and Delmita serve as the primary nodes of settlement, smaller points like Arkansas City and a variety of windmills, such as the Papalote Blanco Windmill, illustrate the infrastructure required to sustain life and industry in this arid environment.