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 ...

A cake features a print of the Koyukuk River at a USPS and NPS celebration of the stamps on May 29. (Photo by Amy Mostafa, Alaska Public Media - Anchorage) Two of Alaska’s rivers are now ...

Salmon are dying in rivers across western Alaska. The largest die-off reportedly comes from the Koyukuk River, a tributary of the Yukon. And as KYUK's Anna Rose MacArthur reports, scientists ...

Koyukuk River Tribal Tours is launching a tour this summer for visitors seeking an authentic Alaska Native experience. The tour offered by the Hughes-based company offers guests the opportunity to ...

Located west of the Koyukuk River in Western Alaska, the dunes are the site of an uncommon discovery. In 2001, biologists for the U.S. Fish and Wildlife Service were walking the dunes when they ...

The Koyukuk River doesn’t loom large in gold rush era histories of Alaska, though not for lack of effort. As would-be prospectors flooded into Alaska and the Yukon following the 1896 Klondike ...

In north central Alaska, a fire near Bear Mountain on the Koyukuk River was also diverted just short of the Eskimo village of Huslia, but it burned on. The Bureau of Land Management used almost ...

and characterized vegetation along the Koyukuk River in Alaska to model how permafrost formation varies with air temperature. The Koyukuk is a 425-mile feeder stream of the Yukon River and the ...

The study examined the Koyukuk River, which flows into the Yukon River ... The loss of this permafrost will shrink Alaska’s size. This is another example of how climate change can radically ...