As Colorado River states race to finish a deal, water users face a resource altered by drought and climate change.

On Dec. 21, 1928, President Calvin Coolidge signed the Boulder Canyon Project Act for “ … controlling the floods, improving navigation and regulating the flow of the Colorado River, providing ...

Together, we can ensure that the Colorado River continues to sustain life, habitat, food, fiber, culture, and community for ...

The excursion is along the Colorado River's Black Canyon National Water Trail— crossing the widest single-arch concrete bridge in the Western hemisphere.

This is akin to the capacity of Lake Mead, the largest U.S. reservoir, which sits behind the Hoover Dam on the Colorado River. The study was published May 27 in the journal Geophysical Research ...

The Colorado River supplies water to 40 million people and generates hydropower in seven states. The Hoover Dam generates power for 1.3 million users in California, Arizona and Nevada.

California, Arizona and Nevada are urging the Trump administration to change course on the Colorado River. The states are calling for fixing infrastructure problems at Glen Canyon Dam.