Researchers noticed that Alaskan streams had turned bright orange. Warmer summers and melting permafrost may be turning the water rusty and acidic. Scientists are racing to figure out the cause so ...

Dozens of Alaska’s most remote streams and rivers are turning from a crystal clear blue into a cloudy orange, and the staining could be the result of minerals exposed by thawing permafrost, new ...

A section of Nome Creek in the White Mountains National Recreation Area, seen in June, shows how historic placer mining, which dredged much of the waterway, molded the bank into a scalloped rock wall.

During these late winter days, researchers who are studying the rusty discoloration of northern Alaska streams are prepping for summer field trips. Jon O’Donnell of the National Park Service is one of ...

A little adventure does wonders for the rut of mundane adult responsibilities. My first fishing trip to Alaska, completed earlier this month, was a handful of years in the making. Tapping into a ...

An aerial view of the rust-colored Kutuk River in Gates of the Arctic National Park in Alaska. Thawing permafrost is exposing minerals to weathering, increasing the acidity of the water, which ...

During these late winter days, researchers who are studying the rusty discoloration of northern Alaska streams are prepping for summer field trips. Jon O’Donnell of the National Park Service is one of ...