1972 Map of Zuberbueler Bend

About this map

Zuberbueler Bend forms a massive loop in the river landscape along the international boundary between Texas and Coahuila, Mexico. This 1970s survey captures the area following the creation of the Amistad Reservoir, which inundated the deep limestone canyons of the Rio Grande. The map shows the extent of the Amistad National Recreation Area, with specific attention to the jurisdictional boundary and areas subject to controlled inundation up to the 1144-foot elevation mark. The terrain is characterized by intricate contouring that reveals the complex drainage patterns and high ridges surrounding the submerged river valley, reflecting a significant era of hydraulic engineering and borderland water management.