Tribes and conservationists cheer Corps of Engineers decision that closes hard-fought campaign on Yakima River

Idaho’s effort to eradicate the dreaded mussel invader appears to have backfired, at a cost of $3 million

American Rivers sounds the alarm as a new management plan opens the area to logging, dredge mining and dams

A Washington House amendment could dissolve the decades-old, bi-state commission that manages the Columbia River Gorge

Six years and 19 rounds of negotiations to nail down an updated treaty are at stake with the change of administrations

Water users in Washington and Oregon are working together to keep streams flowing in the Walla Walla River Basin

The mollusks have invaded water basins around the US, but not yet gained a foothold in the Columbia River Basin

Citizen scientists are also major contributors to a project that utilizes the freshwater crustaceans in a novel way

The United States and Canada have announced a tentative agreement that updates the 60-year-old treaty. Critics say it's "business as usual"

Water temps are increasing. Insect populations are declining. Algae are blooming. A local group is pointing a finger at electric utility operations

The Last 100 Miles debuts in Portland on July 9. Additional screenings to be held in Hood River, The Dalles, Maupin

The viability of prized species depends on the health of smaller species. Yet we continue to ignore the obvious