The state's aggressive treatment has made major progress in killing off quagga mussels. Officials are awaiting results from their most recent round of treatments.

The storm is expected to bring moderate to heavy snowfall across the state, affecting major roadways and travel plans.

Snow flurries fall in Seatac in Washington on Interstate 5 as Atmospheric River moves through (Video Credit: @wsdot_traffic).

Emergency workers and Washington State Patrol troopers investigating Wednesday morning’s fatal collision on Highway 12 at ...

An agreement between four Native American Tribes, two states, and the U.S. government unlocks investments that can restore ...

Northern Pikeminnow Sport Report Program aims to reduce the number of pikeminnow preying on juvenile salmon and steelhead ...

The Columbia Riverkeeper commissioned a recent study that found that because the dams pool water and increase the surface ...

WASHINGTON, D.C - Congressional leaders across the Pacific Northwest are renewing their efforts to protect the Lower Snake ... such as Oregon Congressman Cliff Bentz. “The Columbia River ...

The event kicked off the Year of the Snake. Visitors wandered the gardens ... faith and cultural connections in Oregon. The Oregonian/OregonLive is solely responsible for all content.

The U.S. Army Corps of Engineers said it could make hydroelectric dams on Oregon’s Willamette River safe for endangered ... dams on the larger Columbia and Snake rivers in the Northwest, doesn ...