You are here

A photo of orange rivers in Gates of the Arctic National Park, Alaska. NPS, Ken Hill.

In the remote wilderness of the Brooks Mountain Range in Alaska, where untamed rivers wind through vast expanses of tundra and towering mountains, a peculiar and alarming phenomenon is taking place. Since 2017 at least 75 pristine waterways, which once shimmered with crystalline clarity, have taken on a haunting hue of orange and now contain very concerning toxic metals and minerals.

As speculation gives way to investigation, a team of researchers has been looking at the region's rapidly thawing permafrost—a phenomenon they suspect may hold the key to unraveling this disturbing transformation. 
 
This week the Traveler’s Lynn Riddick talks with key scientists with the National Park Service and the University of California Davis on their new study that investigates these altered headwater tributaries, including ones in five national parks and a number of other protected areas. Among their findings are impacts to aquatic life, ecosystems, drinking water and the locals who rely on fishing for subsistence.

Companion Article: Why Melting Permafrost Is Turning Alaskan Streams Orange

0:02 National Parks Traveler introduction
0:12 Episode Intro with Kurt Repanshek
0:55 Kenai Fjords - Various Artists - The Spirit of Alaska
1:28 Smokies Life
1:51 Blue Ridge Parkway Foundation
2:11 NPT Promo
2:54 Episode 281 - Alaska’s Stained Rivers
47:53 Wonder Lake - Various Artists - The Spirit of Alaska
48:11 Episode Closing
48:39 Orange Tree Productions
49:11 Splitbeard Productions
49:22 National Parks Traveler footer

National Parks Traveler Podcast Episode 326 | Environmental Partisanship

Is green a red and blue construct? Put another way, is there a political partisan divide over the environment?

That’s a particularly interesting question, no doubt more so in recent years as the country seems to have drifted farther and farther apart because of our political beliefs. To that point, a reader reached out the other day to say our stories shouldn’t be negative on the Trump Administration because the national parks are going to need the help of all of us - Democrats, Republicans, Independents, and everything in-between - to survive.

May 25th, 2025 Read More

National Parks Traveler Podcast Episode 325 | Public Employees for Environmental Responsibility

News around public lands these days seems to revolve entirely around the Trump administration. In the case of Public Employees for Environmental Responsibility, many of the steps the administration is taking with the operational efficiencies of the National Park Service and other land management agencies certainly are keeping PEER busy.
 

May 18th, 2025 Read More

National Parks Traveler Podcast Episode 324 | North American Bird Declines

True birders are some of the most determined and persistent hobbyists out there. If you want to call bird watching a hobby. For many, it’s more like a passion. Many look forward to “Big Day” competitions, where individuals and teams strive to see how many different bird species they can spot in a 24-hour period.

May 11th, 2025 Read More

National Parks Traveler Podcast Episode 323 | Walt Dabney and Public Lands

It’s fair to say that the nation’s public lands, those managed by the National Park Service, the Bureau of Land Management, the U.S. Forest Service and other federal land-management agencies are at risk under the Trump administration.

There’s no hyperbole in that statement if you pay attention to what the administration already has done in terms of downsizing those agencies’ workforces, and when you listen to Interior Secretary Doug Burgum say he wants to open more public lands to energy development and mining.

May 4th, 2025 Read More

National Parks Traveler Podcast Episode 322 | Congressman Jared Huffman

The first 100 days of President Donald Trump’s second term might be the most tumultuous first 100 days of any president. He certainly came in prepared to move his agenda forward, no matter what barriers to it existed.

We don’t usually discuss presidential politics, but President Trump has released a blizzard of executive orders and directives touching all corners of the federal government, including the National Park Service.

April 27th, 2025 Read More

INN Member

The easiest way to explore RV-friendly National Park campgrounds.

The Essential RVing Guide to the National Parks

Here’s the definitive guide to National Park System campgrounds where RVers can park their rigs.

Our app is packed with RVing- specific details on more than 250 campgrounds in more than 70 national parks.

You’ll also find stories about RVing in the parks, tips helpful if you’ve just recently become an RVer, and useful planning suggestions.

The Essential RVing Guide to the National Parks

FREE for iPhones and Android phones.