As the Colorado River's giant reservoirs have declined during the last two decades, even larger amounts of water have been ...

— Most of the total water losses occurred in the drier Lower Colorado River basin. It lost 20.7 million acre-feet of ...

The Colorado River Basin has lost twice as much groundwater since 2003 as water taken out of its reservoirs, according to a ...

The Colorado River Basin’s groundwater supplies are dwindling, thanks to a combination of both natural events and human pumping activities, a new study has found. The critical Western system ...

New research shows that typically, less than 10% of land-building alluvium reaches the Bird’s Foot Delta region, the ...