The treaties that divided the river among seven states and Mexico allocated 7.5 million acre-feet of water per year for states in the river’s upper basin, including Colorado, ...

On the lower river, water is divided among Mexico and three U.S. states. Arizona receives 2.8 million acre-feet per year, California 4.4 million acre-feet and Nevada 300,000 acre-feet.

Mexico has never forgiven the U.S. for a little piece of Yanqui land chiseling. Back in the mid-1800s, the unpredictable course of the Rio Grande shifted southward at El Paso, leaving a 600-acre ...