1972 Map of Las Islas Ranch

About this map

Las Islas Ranch anchors this portion of Starr County, where the landscape is defined by the vital infrastructure of cattle ranching and early resource exploration. The map reveals a sophisticated network of water sources, from the La Purisma Windmill in the south to the Brazil Windmill in the north, essential for sustaining life in this arid brush country. The distribution of these windmills, often carrying Spanish names like Cinca de Mayo Windmill and San Juan Windmill, reflects the deep cultural roots of the South Texas ranching tradition.