Alaska's Koyukuk River was the site of an interesting discovery. During a float down the river, a group of University of Virginia professors spotted a woolly mammoth tusk along the riverbank.

From the Koyukuk River, to the Kuskokwim, to Norton Sound, to Bristol Bay’s Igushik River, unusually warm temperatures across Alaska this summer led to die-offs of unspawned chum, sockeye and ...

Of the river itself, the superintendent said, “It’s stunning, I think. Even by Alaska standards, it’s a stunning river.” Stamps featuring the rivers went on sale May 21.

The largest die-off reported comes from the Koyukuk River, a tributary of the Yukon. Researchers suspect record warm waters as the cause but not all salmon are affected.

Done right, resource development in Alaska can be a bridge between preserving what we value today and building what future ...

ANCHORAGE, Alaska (AP) — Add salmon to the list of species affected by Alaska's blistering summer temperatures, including the hottest July on record. Dead salmon have shown up in river systems ...

“Alaska is America’s natural resource warehouse.” That is what Republican Gov. Mike Dunleavy told then-President Trump in 2018. But our home is far more than storage for the next fad of ...

"Okay, we’re in Huslia, Alaska, Koyukuk River. Everywhere, dead salmon all over the place out here. I’m going to cut them open," DeWilde says in the video.

The Dalton Highway will close nightly to all traffic across the Koyukuk River bridge (MP 188.5) for 12 hours from 9 p.m. to 9 a.m. for emergency repairs to several girders as well as one pier.

In a sled dog race held in a part of Alaska known for its champion mushers, John Erhart of Tanana on Saturday came from behind to win the 36th edition of the Koyukuk River Race.

Global warming is eroding the creation of permafrost in Alaska. This shrinks the size of the state. “In the Northern Hemisphere, much of the ground is permafrost, which is frozen year-round.

This July 2019 photo provided by Peter Westley shows carcasses of chum salmon lie along the shore of the Koyukuk River near Huslia. Alaska scientists and fisheries managers are investigating the ...