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2010 Map of Las Islas Ranch

Name: 2010 Topographic Map of Las Islas Ranch
Creator: U.S. Geological Survey
Published: 2010
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2010

About this map

Las Islas Ranch serves as the central point of reference in this ranching landscape of Starr County, Texas. The region is defined by a sparse network of roads like FM 2686 and an extensive infrastructure of named water sources. Wind-powered wells are the lifeblood of this arid terrain, with numerous family and place-named landmarks including Brazil Windmill, Borrego Windmill, and San Antonio Windmill distributed across the landscape. The reliance on these features underscores the historical and ongoing importance of groundwater for livestock in the Brush Country.

Secondary roads such as Alaniz RD and Rancho San Blas RD connect these remote points, while landmarks like El Cerrito Windmill and Las Comas Windmill provide critical orientation points in an otherwise subtle topography. The presence of La Purisma Windmill and San Felipe Windmill further illustrates the dense distribution of essential ranching improvements needed to sustain the local cattle industry in the early 21st century.