Republican Congressman Ryan Zinke has again introduced legislation that would require the Interior Department to maintain ...

Ever wonder what the deepest lake in Arizona is? Here's what you want to know about the top spot for swimming, boating and more in Arizona.

A dry January across Colorado and the rest of the Rocky Mountain West has created a dichotomy of water haves and have-nots.

Las Vegas has now gone 212 days without rain, and all of Clark County is under either extreme or exceptional drought, but water levels at Lake Mead keep rising. Newsweek reached out to the National ...

Latest estimates place the Upper Colorado River Basin snowpack at just 83 percent of the historic median for this time of ...

Lake Mead falls to lowest level since Hoover Dam's construction as "apocalyptic" heatwave and drought hit parts of US.

Water managers aren’t in for the exceptional year they had hoped for, with snowpack across the West underperforming in the ...

Scientists studying the volcanic landscape of the Cascade Range found that an aquifer has nearly three times as much water as ...

Central Arizona is preparing for more intense droughts and floods through major water projects with federal support.

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

With Trump’s action to pause all federal spending, there’s a temporary stop on money that proved critical in bringing Lake ...

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