Below Mount Jefferson and McKenzie Pass is a massive storehouse of water three times the size of Lake Mead, say Oregon researchers.

Get comprehensive coverage of the California issues you care about the most in one free, weekly email. Sign up for WeeklyMatters. Map of active wildfires burning across California. Explore the history ...

A rocky start to the year has put water flows through America's second-largest reservoir on track to decline, unless ...

Utah's water agent told lawmakers that efforts to secure water deals outside of the state are underway, but he warns it will ...

Absent intervention by state wildlife officials, Nevada’s state animal, the desert bighorn sheep, may see its herds thinned ...

While the Oregon Cascades are buried beneath heavy snow and glaciers this time of year, new research is showing something big ...

The result is that the federal Colorado Basin River Forecast Center is now predicting that April through July flows into ...

Newsom and California are frequently the target of Trump’s ire. Some of his most memorable criticisms of the state have been ...

North of the California border, scientists just found 21 trillion gallons of water hiding in the cracks of volcanic rock.

Research over the last several years has led a team of scientists more insight on just how large an aquifer is at the crest of the Cascades.

Scientists discover an enormous underground aquifer in the Oregon Cascades, potentially reshaping water management.

The devastating wildfires consuming Los Angeles have driven home to the world the intensity of the water crisis in California ...