For years, water managers have been puzzled as the Colorado River kept delivering less water than expected—even when snowpack ...

For more than a century, the Green River's course through the Uinta Mountains in Utah's northeast has been a geological mystery, seemingly defying physics. Rivers carve their paths by flowing downhill ...

As the Colorado River shrinks in an extremely dry year, the Trump administration is moving water from one reservoir to ...

The Spokane River ran low most of June. If you care about the river, this should alarm you. At the beginning of the month, the river’s flow was well below its legally required minimum – by nearly a ...