(I)f Nebraska continues down this path, the State of Colorado is prepared to defend its rights under the South Platte River ...

A D.C. official said the Black Hawk helicopter was found upside down and the American Airlines plane in pieces in the Potomac River.

Portland's sewer system combines sewage and runoff into the same pipes. Sometimes heavy rains cause those pipes to overflow. But a sewer overhaul 14 years ago has drastically reduced this pollution.

Our journey through Iowa’s 99 counties began in January with a visit to Kossuth County in the north, which is not the only ...

Investigators say there are likely no survivors in the deadly aircraft collision that occurred Wednesday evening above the ...

Officials say the conditions of the Potomac River are complicating recovery efforts of the bodies of the 67 presumed dead in a mid-air collision between American Airlines flight 5342 from ...