A U.S. Fish and Wildlife Service biologist handles salmon at the Coleman National Fish Hatchery, near Shasta Lake, in June 2015. Randall Benton Sacramento Bee file The U.S. Fish and Wildlife Service ...

Treated wastewater flowing under a bridge far northwest of Tucson spells lost water and lost money for the city of Tucson and the Tohono O'odham Nation. The effluent flows steadily down the Santa Cruz ...

A mid-March heat wave and deepening drought are worsening the outlook for Colorado River flows. Forecasters have significantly downgraded predictions for snowmelt runoff into Lake Powell. Record-low ...

Somewhere beneath the rolling farmland of southwestern Illinois, an underground stream flows in complete darkness through a cavern most people have never heard of. I stumbled across this underground ...

As a record-hot winter continues across much of the West, forecasters are dialing back estimates for how much water will flow into the Colorado River during the spring runoff. The latest models show ...

While raw sewage and wastewater continue to be diverted through the C&O Canal since the January sewage spill, tests show dangerously high levels of E. coli in a nearby creek that feeds into the ...

Efforts to improve the “swimmability” of urban areas are gaining global traction, from Paris to Chicago Swimmable Cities is a global alliance of local government officials, experts and advocates ...

The Colorado River is the sixth longest river in the United States and one of very few “wild” rivers in the lower 48 states. Running through New Mexico, it is one of the most important natural ...

AUGUSTA, MAINE — The Maine River Flow Advisory Commission met on Thursday, March 5th, to review current ice conditions, stream flow levels, and flood risks across the state. Experts from federal, ...

Geologists have resolved a long-standing mystery about how two major rivers in the western United States became connected. They found that a hidden shift deep underground briefly lowered a mountain ...