A viral video shows Big Lake near Huslia rapidly eroding and draining into the Koyukuk River, alarming residents who say recent high water and thawing permafrost are accelerating change. Locals fear the erosion could threaten parts of town built near the lake.

River erosion is impacting the road and requiring the replacement of health infrastructure.

High water in the Koyukuk River is causing erosion near Huslia as warm spring temperatures rapidly melt above-average snowpack.

Dead chum salmon are lining the banks of one of the Yukon River’s largest tributaries. Koyukuk River residents and scientists alike suspect the deaths are