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| Treaty to Resolve Pending Boundary Differences and Maintain the Rio Grande and Colorado River as the International Boundary | |
|---|---|
 Border of Nogales and the United States in 1950 | |
| Signed | November 23, 1970 |
| Location | Mexico City |
| Effective | April 18, 1972 |
| Signatories | |
| Citations | T.I.A.S. 7313 |
| Languages | |
The Boundary Treaty of 1970 is a treaty between the United States and Mexico that settled all outstanding boundary disputes and uncertainties related to the Rio Grande (Río Bravo del Norte) border between them.
The most significant dispute remaining after the Chamizal Settlement in 1963 involved the location of the boundary in the area of Presidio, Texas, and Ojinaga, Chihuahua. The river channel was relocated to approximate conditions existing prior to the dispute that arose from changes in the course of the river in 1907. The International Boundary and Water Commission was charged with its implementation. The American-Mexican Treaty Act of October 25, 1972 authorized participation by the United States IBWC section.[1] The project commenced in 1975 and completed in 1977.[2]
- ^ 22 U.S. Code § 277d–34 - American-Mexican Boundary Treaty, authorization for carrying out treaty provisions; investigations; land acquisition, purposes; damages, repair or compensation
- ^ Robert J. McCarthy (2011). "Executive Authority, Adaptive Treaty Interpretation, and the International Boundary and Water Commission". U.S.-Mexico, 14-2 U. Denv. Water L. SSRN 1839903.
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