1979 Map of Isla Mesteno

About this map

Rio Bravo Grande carves a tight oxbow across this international borderland, defining the shifting boundary between Webb County, Texas, and Tamaulipas, Mexico. This late 1970s survey documents a landscape of numerous ranching outposts and settlements, from the abandoned site of San Pablo to active hubs like San Isidro (La Campana). The region's economy is etched into the terrain through a network of gas wells and extraction sites, including Oasis Uno and Pandura Tres (Gas), alongside infrastructure like the Guerrero II microwave station. Significant topographical features like Isla Mesteño and the El Lobo drainage reflect the arid environment's drainage patterns. This map serves as a vital record of the border corridor's infrastructure, documenting customs locations such as La Rivereña and the numerous small rancherias that characterize the Webb County backcountry.