
The Rio Grande defines the international boundary in this 1965 survey, documenting a dynamic section of the river where the United States and Mexico border remains subject to the water’s shifting course. A prominent feature on the northern bank is Valadeces Banco No 130, a topographic formation that illustrates the complex land management and boundary issues common in the river valley. The landscape is marked by several locations of a Well, indicating the critical role of groundwater for the remote outposts and ranching operations in this arid stretch of Texas and Tamaulipas. This map represents a moment when the International Boundary and Water Commission was actively monitoring river changes, noting that the boundary line was not completely defined at the time due to recent fluvial activity.
5 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
2 editions found
1949 · Mc Allen
USGS Topo · 1:250,000
1954 · McAllen
USGS Topo · 1:250,000
1956 · Garcias
USGS Topo · 1:62,500
1956 · Los Ebanos
USGS Topo · 1:62,500
1956 · Escobares
USGS Topo · 1:62,500
1957 · Mc Allen
USGS Topo · 1:250,000
1962 · McAllen
USGS Topo · 1:250,000
1965 · Rio Grande City South
USGS Topo · 1:24,000
1965 · La Grulla
USGS Topo · 1:24,000
1965 · Sullivan City
USGS Topo · 1:24,000