Where California's towering Sierra Nevada surrenders to the sprawling San Joaquin Valley, a high-stakes detective story is ...

The Riachuelo System in Buenos Aires, Argentina, is nearing its completion with Lot 2, which involves building one of the world's largest wastewa ...

The Majestic Mountain Loop takes you through three of America’s most iconic parks: Yosemite, Sequoia, and Kings Canyon. Julie ...

Several leaders from Lake and Sonoma counties remain worried about the future of local water supplies as a key PG&E ...

The Trump administration plans to alter the Clean Water Act’s definition of wetlands to exclude seasonal streams, ponds and pools.

Interactive map from the California Geological Survey shows the destruction potential of a tsunami wave in the Golden State.

The Webster Tube will close two nights this week for maintenance, according to Caltrans. The underwater tunnel that carries traffic under the estuary from Oakland to Alameda will ...

A Supreme Court ruling placed limits on federal protections for many streams and wetlands. A bill in California’s Legislature ...

The most recent risk assessment, outlined in maps published by the California Geological Survey, illustrate the devastation ...

Did you know San Francisco is surrounded by national park sites? That's right, plan your next national park adventure in San ...

Eyewitness News got a rare look inside an underground portion of the Colorado River Aqueduct that runs through San Jacinto ...

The world-renown light dispersion artist and the mind behind Star Axis in the New Mexican desert shows work never seen before ...