As someone who has spent his career working to save rivers, I’ve had the opportunity to explore some of the most spectacular waterways North America has to offer. Some of my favorites include the Middle Fork Salmon River in Idaho, the Middle Fork Flathead River in Montana, the Skeena headwaters in British Columbia, and the Colorado River through the Grand Canyon.

While all these rivers are special, none, for me, compares to the Alsek. This remote, relatively obscure river flows for 174 miles from its headwaters in the Yukon Territory, across the northwest panhandle of British Columbia, then makes its final run to the Pacific Ocean through Alaska’s Glacier Bay National Park. Among its superlatives, the Alsek traverses the largest non-polar icefield, the largest protected wilderness area, and the second highest coastal mountain range on the planet.

Back in 2012, a friend of mine from Montana who had guided on the Alsek for years invited my wife and me to join him on a private trip down what he called “the wildest river on earth.” We jumped at the opportunity, and that August, fourteen of us embarked on an epic two-week adventure. The thing I remember most about that trip was the bears – we saw 53 of them, including one large male grizzly that charged full speed into our camp when we were cooking bacon on the first morning.

Bacon Bear on the Alsek River, Alaska | Scott Bosse
Bacon Bear on the Alsek River, Alaska | Scott Bosse

There are precious few trips that are truly life-changing. That trip down the Alsek was one of them for me. I had to totally recalibrate my concept of wildness.

I never thought I’d get a chance to return to the Alsek. But then a few months ago, American Rivers’ President, Tom Kiernan, had to drop out of an Alsek River donor trip due to an injury. The main purpose of the trip was to discuss with our supporters how we plan to expand our river protection work in Alaska. I was asked if I could take his place. I felt terrible for Tom because I knew how much he was looking forward to this trip, but I could barely contain my excitement at the prospect of returning to the river that had so captivated me.

So, on the summer solstice, my wife and I flew from our home in Montana to Juneau, Alaska, where our adventure began. Early the next morning, we boarded the ferry for the four-hour trip up the Lynn Canal to Haines, where we met the other trip participants and guides at the historic Hotel Halsingland that evening. As the guides handed out personal river gear to everyone, I felt the same giddy anticipation that I felt 12 years ago.

Our expedition team included five highly skilled guides from Haines Rafting Company; American Rivers’ Northwest Regional Director, Sarah Dyrdahl; a mother-daughter duo from Wyoming; a retired couple from Sitka, Alaska; a gentleman in his 70s from California who once hiked the entire the Pacific Crest Trail; another gentleman in his 70s from Florida who had never camped before; a whip-smart young investor from Colorado; a professional photographer from Haines; and my wife and me.

The following morning, we made the three-hour drive to Haines Junction in the Yukon Territory, checking in at the international border station along the way. From there, we drove another hour on a rough four-wheel drive road to the put-in on the Dezadeash River. After loading our rafts in a light drizzle, we were finally ready to launch into the great beyond.

Driving to the put-in of the Alsek River, Alaska | Scott Bosse
Driving to the put-in of the Alsek River, Alaska | Colin Arisman

A few hours into our float, we spied a grizzly bear swimming across the river a few hundred yards downstream. It disappeared into a thick patch of willows on a peninsula right where we planned to camp for the night. “Here we go again with the bears,” I thought to myself. But the only large animals we saw that evening were a dozen trumpeter swans in a backwater slough.

For the next several days, we made our way down the upper Alsek, marveling at the glacier-polished landscape and soaking in the warm sunshine. As we approached our camp at Lava Creek, we pulled over at a familiar point on river right where one of our fearless team members, Ariana, took a swim in a gin-clear pond while the rest of us hiked around on the sand dunes and rock outcroppings. On that upper section of the river, the land is so freshly sculpted it feels like you’re floating through the Pleistocene. You half expect to see a wooly mammoth around each bend.

Floating by Lava Creek | Colin Arisman
Floating by Lava Creek | Colin Arisman

On day three of the trip, we arrived at iceberg-studded Lowell Lake, created by a 50-mile-long glacier that dammed the entire width of the river not long ago. Words can’t describe the beauty of this place. We camped beside the lake for two nights, spending our days hiking, swimming in off-channel ponds, and glassing for wildlife. We had planned to climb Goat Herd Mountain, which affords dazzling views of the 15,000-foot-high Hubbard massif, but a swollen side-channel of the river blocked our way. In the evenings when the sun dipped behind the mountains, we sipped tequila by the campfire and listened to the faint roar of distant waterfalls and the occasional thunderclap of calving icebergs.

Lowell Lake camp | Colin Arisman
Lowell Lake camp | Colin Arisman

As we departed Lowell Lake through a maze of icebergs, we entered the most perilous whitewater section of the trip – first Sam’s Rapid, and then Lava North (named after the notorious Lava Falls rapid in the Grand Canyon). We pulled over on river left to scout our line through Lava North. You don’t want to flip your raft here, as the consequence is a long and harrowing swim in 35-degree water. Only after we made it through safely did we hear the story of one of our guide’s friends who did just that, got sucked down into a thundering hole, and “saw the darkness.” He hasn’t rowed the river since.

Running rapids | Colin Arisman
Running rapids | Colin Arisman

As we made our way downriver, both the mountains and the river grew in size, making our rafts seem like tiny specks in comparison. We arrived at the entrance to Turnback Canyon and pulled into the portage camp on river right. As we unloaded our gear from the rafts, someone noticed a chocolate-brown sow grizzly and her three cubs at the foot of an alluvial fan across the river. We took turns looking at them through binoculars for hours.

Later that afternoon, we took a short hike onto the Tweedsmuir Glacier until we got bogged down in knee-deep mud. The glacier hems the Alsek River against a waterfall-studded mountainside, turning it into an unrunnable maelstrom of whirls and boils. The only way rafters can get around the canyon is via a helicopter portage. So, we got up early the next morning, wolfed down breakfast, and laid out all our gear in neat piles so the helicopter could haul it in a cargo net dangling from a longline. Once the helicopter transported us and our gear around the canyon and onto a sandy island, we reinflated our rafts, reassembled the frames, and reloaded our gear. The whole operation took four trips and about three hours.

Helicopter portage | Colin Arisman
Helicopter portage | Colin Arisman

Downriver from Turnback Canyon, the climate rapidly changes from continental to coastal. As we made our way towards our camp at the confluence of the Tatshenshini River, we added layers of clothing to ward off the damp chill. The confluence is one of those power spots that heightens all your senses and makes you feel incredibly alive. On maps, it is known as the Center of the Universe because there are petroglyphs carved into a rock outcropping on a nearby island that tell the story of how the world was created.

Before we departed the confluence camp, we gathered in a circle on the beach to share the story of how, over three decades ago, U.S. and Canadian conservationists fought off the proposed Windy Craggy copper mine. At the time, it was called the most environmentally destructive project ever proposed in Canada. It would have lopped off the top 2,000 feet of Windy Craggy Peak, sending acid mine drainage into the Tatshenshini and lower Alsek rivers, devastating their salmon fisheries. After a long battle, the Canadian government designated the Tatshenshini-Alsek Provincial Wilderness Park in 1993, closing the door to future mining. A year later, the area was designated as a UNESCO World Heritage Site.

Confluence of the Tatshenshini River | Scott Bosse
Confluence of the Tatshenshini River | Scott Bosse

Below the confluence, the Alsek doubles in size and glaciers and waterfalls plunge into it from every direction. While there are no large rapids in this reach, rowers must stay laser focused and follow the deepest channel in the labyrinth of braids, lest you run aground on a submerged sandbar or worse yet, get carried across the floodplain and separated from the group. In the latter case, you might not reconnect with your party until the next day. 

The last major landmark on our trip was Alsek Lake, the entrance to which is marked by a distinct promontory known as Gateway Knob.  You can enter the lake through one of three doorways. We chose door #3, to the right of the knob, because you can get your rafts trapped in a dangerous traffic jam of constantly shifting icebergs if you enter through the other routes. We set up camp on a wildflower-spangled beach, then scrambled up to the top of the knob through a dense forest of alders and devil’s club. From that vantage point, we could absorb the grandeur of the landscape we had traversed over the past two weeks – the huge, silt-laden river slithering across its floodplain like a thousand snakes, the massive glaciers pouring off the Fairweather Range, and the giant icebergs sailing across the lake like frozen ocean liners.   

Leaving Alsek Lake | Colin Arisman
Leaving Alsek Lake | Colin Arisman

On our last morning, we rowed across the outlet of the lake in a silvery fog, then made our way downriver, escorted by icebergs that occasionally would hit the bottom, rear up, and then roll over. Arriving at the takeout near Dry Bay, we formed a firemen’s line to unload our gear from the rafts for one last time. Soon, our bush plane would arrive and fly us up the coast to Yakutat where we would say our farewells, catch our commercial flights, and go our separate ways.

Epilogue – On July 20, two weeks after our trip ended, a small plane carrying our bush pilot, Hans Munich, and his partner, Tanya Hutchins, disappeared on Mt. Crillon in the Fairweather Range in poor weather conditions. A few days later, the U.S. Coast Guard called off the search for the plane and its occupants. Our hearts go out to all who knew them.

Here in Montana, we like to gamble, as evidenced by the hundreds of small casinos scattered across the state. But we’re gambling with the health of downstream residents by storing decades of industrial waste in the floodplain of the Clark Fork River while we cross our fingers that the next big flood never happens. Tons of industrial toxins could wash down the Clark Fork River. It could happen next year. It could happen ten years from now. It’s not a matter of if the next big flood will happen, but when.

And when we double down on flood risk coupled with industrial toxins, the stakes are just too high.

For over a half-century ending in 2010, the Smurfit-Stone pulp mill along the Clark Fork River near Frenchtown, Montana produced cardboard. Industrial processes to manufacture parts of cardboard boxes left tons of hazardous cancer-causing toxins including heavy metals, PCBs, dioxins, and furans strewn across nearly 1,000 acres next to the river. These toxins have been partially protected from flooding by a decrepit gravel berm separating the mill from the river channel. But a recent berm failure study commissioned by American Rivers and the Clark Fork Coalition predicts a scary re-enactment of the infamous 1908 flood and the toxic waste it swept downstream.

The 1908 Clark Fork River Flood, Missoula, Montana, looking north across the river towards downtown and flooded neighborhood | University of Montana, Mansfield Library, archival collection

The 1908 flood is the largest on record for the Clark Fork River. It inundated portions of Butte and Missoula, washed out numerous bridges, threatened the then-new Milltown Dam, and dispersed copper mine waste for more than 100 miles. More than a century later, we are still in the midst of grueling, complex efforts to clean up this waste. Sadly, a complete cleanup is simply not possible. Back then, it would have been very difficult to anticipate the catastrophic outcomes of such a large flood, but we know better now.

Estimating the size of future floods requires extending beyond the historical record, and the use of climate forecasting tools to describe expected changes in local river systems. As climate change continues to tighten its grip on the Northern Rockies region, we can expect a shift in the causes, timing, and frequency of higher flows in western Montana, with less snowfall and more rain. Floods triggered by heavy rain, or rain-on-snow, can raise river levels faster and more unpredictably–just like during the 2022 Yellowstone River flood. The chances of that flood happening in any given year were infinitesimal–less than one-in-a-thousand. Yet it happened less than three decades after back-to-back 100-year floods wreaked havoc on the upper Yellowstone River in the mid-1990s.

KPAX-TV coverage from 2018 looking back at the 1908 flood.

We now know that a catastrophic flood on the Clark Fork River would breach the berm at the  Smurfit-Stone pulp mill and could deposit industrial waste for miles downstream. While catastrophic flood risk may be small for any given year, that risk compounds over time the longer we wait for a cleanup. The extreme toxicity and persistence of waste at the Smurfit-Stone pulp mill underscores the need to consider flood risk over generations and to avoid leaving waste in place long-term, as has happened elsewhere across Montana.

American Rivers and the Clark Fork Coalition are calling on the Environmental Protection Agency (EPA) to include the 2024 berm failure report in its risk assessment for the Smurfit-Stone pulp mill. Ensuring that flood risks inform cleanup plans means completely assessing waste stored in – and next to – the floodplain without delay and adopting a cleanup that removes waste, eliminates the berms, and fully restores the floodplain.

At the Smurfit-Stone pulp mill, the consequences of a future flood just aren’t worth the gamble.

Help safeguard the Clark Fork River – Tell the EPA to take flood risks seriously!


Co-authored with: Sam Carlson, Staff Scientist, and Andrew Gorder, Legal & Policy Director, at the Clark Fork Coalition work to protect and restore the Clark Fork River. Together, Clark Fork Coalition, American Rivers, and other partners commissioned the berm failure study from River Design Group, a local engineering firm.

A benefit of working for a river conservation group as an avid angler is that you have a chance to get to know some excellent fishing rivers.  This past month has been a great example of that, where I’ve been able to visit some amazing rivers, many of which American Rivers has worked on.

Penobscot River, Maine | Steve White
Penobscot River, Maine | Steve White

The month started on a small tributary to the Watauga River. American Rivers and Mountain True were spearheading the removal of Shull’s Mill Dam on the Watauga, which is a special river to me because that’s where my dad taught me to fly fish. Seeing the dam come out was meaningful, and catching trout in a healthy feeder stream nearby made it even more so. When a river is dammed, there’s nothing better you can do for it than taking the dam out.

From there I had a chance to fish on the Penobscot River in Maine. This river benefited from two major dam removals and a fish ladder around a third that were done about ten years ago in collaboration with the power company that owned the dams. The negotiated deal allowed the power company to generate more power from their tributary dams, and the native fish (Atlantic salmon, alewife, herring, etc.) got access to 1,000 miles of spawning habitat. That’s a huge number

and the fish are now returning in record numbers. And by the way, the fishing was tremendous – working the banks with popping bugs for eager smallmouth bass – and it was fun to be joined by a local Bald Eagle who fished near us. 

The next trip was a driving tour of Wyoming trout streams with my son. We have been taking fishing trips since he was about six, and they just keep getting better. Our first stops were tributary streams to the Snake River near Jackson – cold, crystal-clear creeks that hold native Fine Spotted Snake River Cutthroat Trout. That’s kind of a mouthful, but the fish are gorgeous and have been there since the Ice Age. When you hold them near the river bottom, you can see how their colors match the colors of the rocks, and they blend in perfectly. All these streams have been protected by “Wild and Scenic River” designations (led by my colleague Scott Bosse several years ago), so the creeks and the fish will continue as they were meant to be forever. 

From there we went up to Yellowstone National Park where we fished for native Yellowstone Cutthroats. If you’ve not been to the Lamar Valley, I would highly recommend it. Driving past herds of bison and pronghorns was thrill enough, but then to catch native Cutts in the beautiful Soda Butte Creek was icing on the cake. Though crowded, if you’re patient and careful, the fishing is tremendous.

After Wyoming, my son and I met up with the rest of the family in northern California. We stayed on the Middle Fork of the Feather River, which glistens beautifully in the morning sun. Like the Snake River headwaters mentioned above, the Middle Fork of the Feather River is protected by “Wild and Scenic River” designation. There are some small streams that feed into it that have clear, cold water that support native Rainbow trout, which my daughter and I love to fish for. Sometimes they jump several feet out of the water – pretty impressive for a six-inch trout.

Granite Creek, Wyoming | Steve White
Granite Creek, Wyoming | Steve White

For me, my love of rivers is coupled with my love of fishing. We’re blessed to have such wonderful rivers and fishing in this country, and American Rivers is working to keep it that way. 

Good luck the next time you’re on the water.

World Nature Conservation Day is July 28th. It is more important than ever to speak up and make your voice heard for our nation’s rivers. We know there is a lot going on in the world that can make it overwhelming to figure out what you can do to help. That’s why we have put together 5 simple things you can do this World Nature Conservation Day to make an impact in your community and nationwide. 

1. Take Action: Sign our Clean Water Petition

Water is a basic need. Everyone, no matter where they live, deserves clean drinking water. Please join us in asking Congress to recognize the value all streams and wetlands have in the process of providing us with clean water. These waterways deserve federal protections, and Congress must come together to make it happen. 

2. Take part in or create your own river clean up through our National River Cleanup ® program

National River Cleanup® is a key initiative for American Rivers. Since its inception in 1991, we have covered more than 261,000 miles of waterways and removed more than 32.5 million pounds of litter and debris. Set up a cleanup in your community today! 

3. Sign up to download the American Rivers Election Guide

This upcoming election is a pivotal moment where we have the opportunity to shape a future in which our rivers thrive and our communities prosper. Download the American Rivers Election Guide so you can be a confident voice for rivers in November.

4. Learn about the top 10 ways to conserve water at home

There are a few simple things you can do at home — Fix leaks, turn off the faucet while brushing your teeth — to ease the burden on your local water supply and save money in the process. These water-saving measures can have a big impact on water demand in your local community.

5. Share your favorite river!

Leave a comment here and share your favorite river and why you love it. If someone else has mentioned your river or a river you love, share your story with them. We are all connected by our waterways, let’s prove it! 

One small action each day adds up to make a big impact over time. Share this list with your family and friends and revisit these actions when you can. Healthy rivers are for everyone, not just a privileged few. We are in this together, and it will take all of us in this movement to protect rivers and preserve clean water. 

Michigan is a state defined by water. Well known as a Great Lakes state, Michigan also has 51, 438 miles of rivers and is home to some of the most outstanding rivers in the contiguous United States: the Au Sable, Manistee, and Pere Marquette rivers in the south and the Presque Isle, Ontonagon, and Paint rivers in the Upper Peninsula to name a few. Thankfully some of these rivers, especially those in the northern part of the state, are permanently protected either as nationally designated Wild and Scenic Rivers or as Michigan Natural Rivers under state law. American Rivers is working with its partners to enhance these protected rivers and explore opportunities to protect more rivers — including the Huron River in southeastern Michigan.      

This continues a legacy of work by American Rivers going back to the 1980’s, when we, along with local river groups and the Michigan United Conservation Clubs, championed the Michigan Scenic Rivers Act which protected 569 miles of Wild and Scenic Rivers. Today, Michigan has more protected miles of rivers than any state east of the Rocky Mountains. 

Many of the state’s most outstanding rivers are part of the National Wild and Scenic River System, supporting habitat, clean water, and recreation for surrounding communities. American Rivers recently surveyed local river groups and state and federal agency staff to assess the opportunities to protect more rivers and streams and improve stewardship for currently protected rivers. Based on the feedback, we are leading efforts to explore improving stewardship, increasing restoration funding for protected rivers, and seeking new protections for rivers such as the Huron River, a candidate for a Partnership Wild and Scenic River study and designation. This designation would substantially increase annual funding to support the successful restoration and stewardship of this outstanding river.   

The Huron is known for having outstanding fishing and recreation and the river hosts a number of historic and Native American village sites. The river provides for a wide range of quality gamefish species such as smallmouth and largemouth bass, trout, and steelhead. The Huron River Water Trail, a part of the National Water Trails System provides an exceptional 104-mile-long water-based recreational opportunity for paddling, fishing, and hiking through a significant number of public access sites.   

Huron River, Michigan | Lawrence Lazare, Flickr
Huron River, Michigan | Roman Kahler

American Rivers is working with our partners to actively explore the Huron River for Partnership Wild and Scenic River status. We are especially grateful for the support of Michigan’s representatives in the U.S. Congress, including U.S. Senator Peters and U.S. Representative Dingell, who are river champions and whose staff have expressed support for exploring opportunities to protect the Huron River.   

It’s summer, prime season to play in rivers and lakes. Unfortunately, summer is also toxic algae season, which impacts our ability to enjoy our public waters. Toxic algae are actually a type of bacteria often referred to as “algae” because it looks similar. It grows quickly — in what are called “blooms” — with a combination of warm temperatures with excess nitrogen and phosphorous from urban and agricultural runoff. By August, peak toxic algae month, blooms appear as green slime choking the water body or as bright floating mats of scum on the surface.

Toxic algae isn’t just unsightly; it’s a serious threat to our economy, drinking water supplies, and fisheries. That’s because it releases toxins into the water that can harm people and animals. Blooms can be toxic if consumed or touched, causing headaches, stomach pain, dizziness, vomiting, diarrhea, and liver damage. Inhaling the bacteria can cause skin and respiratory irritation. It can be fatal to dogs that swim in or drink the water. As the algae decomposes, it uses up the oxygen in the water, leading to fish kills.

Toxic algae outbreaks have been growing in intensity and frequency, thanks to the increased use of fertilizers and rising temperatures associated with climate change. In 2023, heat waves as a result of El Niño made for a particularly bad year. A toxic bloom off the coast of California left hundreds of sea lions and dolphins sick or dead. In Utah, blooms in the Virgin River and Utah Lake killed two family dogs and sickened more. Toxic algae covered half of Lake Okeechobee’s 730 square miles in Florida and 312 square miles of Lake Erie. Other severe outbreaks appeared in Kansas, Texas, and Oregon.

In past years, toxic algae outbreaks in drinking water supplies have resulted in advisories for children, pregnant women, and nursing mothers to avoid drinking the water; and left hundreds of thousands of people in urban areas without drinking water for multiple days. A Center for Disease Control report from the 2021 toxic algae season recorded 117 cases of human illness and nearly 3,000 animal cases.

Binder Lake, Missouri | J. L. Graham
Binder Lake, Missouri | J. L. Graham

There are ways to reduce pollution into waterways, particularly on the local level. When we alter natural landscapes, we change the way water moves over the land and what it carries: think rainfall washing fertilizer off lawns and farmlands to contaminate local streams, or parking lots and rooftops preventing rain from soaking naturally into the ground. But we can reduce our use of fertilizers, update our infrastructure to eliminate sewage overflows, and increase green infrastructure in cities and towns — like installing green roofs, planting more trees, creating rain gardens, and making space for more natural areas — to naturally absorb and minimize pollution that flows into our waters. 

“At the national level, it’s essential that we strengthen clean water safeguards. All waters are connected, and pollution anywhere threatens our communities and our drinking water. We need Congress and the administration to make clean water and healthy rivers a top priority.”

– Gary Belan, Senior Director, Clean Water Supply, American Rivers

And remember to check local advisories, including park alerts, local news, and public health websites, for toxic algae blooms before heading out to play in your public waters this summer.

While many are familiar with the fish and wildlife that define our landscapes there are other lesser-known critters that play a role in creating and maintaining a healthy ecosystem. This little guy isn’t flashy with brilliant plumage, a thrilling call, or a remarkable migration story. It is very difficult to see by the naked eye, doesn’t have a dramatic migration story, and isn’t tasty to eat. But you can always know where to find it … in clean clear healthy waters.

So what is this new river friend of ours?

Cymbella cistula photomicrograph
Cymbella cistula photomicrograph

Cymbella cistula shown here is one of the many members of the genera and among the many thousands of varieties of diatoms, or what are commonly called algae. Diatoms are microscopic cells with an outer body shaped in a dramatic and diverse array of wondrous forms. These individual diatoms can exist as individuals or group together in visible colonies (such colonies can be mistaken for a vascular plant, e.g., a plant that has circuitry like blood vessels for transporting water and nutrients through their stems … as a simpler form of life, diatoms have none of this circuitry).

Diatoms generate oxygen through photosynthesis – the process where sunlight and carbon dioxide are converted to oxygen, energy, and water. They are often referred to as planktonic (from the Greek for “wandering”) because despite some having the ability to swim about, they spend their time moving with the currents. The companion group of critters to the plant-like diatoms, or phytoplankton, are the zooplankton, the first consumer in the ocean that eats phytoplankton, also small or early life stage animals that swim or float about.

These two types of planktonic organisms are critical to freshwater and marine food webs and make up a tremendous amount of the living biomass, or organic matter, in our rivers and streams.

Algae? Phytoplankton? You may be envisioning a lake or stream covered in green, making recreation discouraging or even hazardous with certain types of algae blooming in the heat of summer. Too many nutrients from treated wastewater and lawn or farm chemicals allow many species of diatoms to excessively thrive. Impoundments behind dams are often subject to algae blooms due to the decreased flow of water and higher water temperatures. And while abundant amounts of algae generate oxygen from their photosynthesis, inevitably an excessive amount of algae biomass will crash and decay. And decay then consumes all that oxygen. What was a naturally clear and clean waterbody turns a murky green with little oxygen. And some species of diatoms generate toxins that are harmful to humans and animals, making an impoundment or lake not just unappealing to swim, but hazardous to your health. But what about our new friend Cymbella cistula? Not all diatoms are alike! And many species are quite sensitive to an abundance of nutrients and do not thrive in enriched and warmer waters. Cymbella diatoms are one of the diatoms that can really only flourish in low nutrient (“oligotropic”) conditions, waterbodies that run clear and clean. Here is where this tiny organism has an out-sized role in our work to protect and restore our waters.

To chart a course away from polluted and degraded rivers, streams, lakes, and wetlands we need to set a destination. One destination is a waterbody that has little or no impact from humans, or what scientists and regulators call a baseline condition. Because different types of waterbodies – wetlands, estuaries, lakes, streams, and rivers – all have different chemical, biological, and physical characteristics no two types of baseline conditions are exactly the same. Pristine rivers and streams in the northeast are generally those that run clear and cold and flow through forests and areas of little human disturbance. While you may know a pristine stream when you see it, in order to make decisions about how to restore an unloved reach of river, scientists and regulators need precise and measurable indicators of what a pristine baseline condition means.

For many years those indicators were chemical measures of water cleanliness – dissolved oxygen, suspended solids, or temperature. But these indicators only describe a condition at a point in time when the measurement was taken and don’t integrate conditions over longer periods. And they can miss other problems that may be present. So these chemical measures alone are not the best for ensuring we make it to our destination of healthy water. To get the get fullest and most robust picture of the health of a river or stream we need to listen to the critters!

To make a better roadmap (rivermap?) to our destination scientists have for years been exploring what types of fish, insects, and diatoms live in the different types of waterbodies. This work over the last 30 years has created biological definitions of a waterbody’s health to complement the more simplistic chemical measures. One of those biological definitions is based on the description of the types and amounts of diatoms present different environmental conditions. In many parts of the country including here in New England scientists have now collected enough diatom data across enough waterbody types and conditions to create statistical models that show us what diatoms should be living in what types of water conditions. These data and models allow environmental professionals to design clean-up plans or demonstrate how a high-quality water body can remain in good health. In our work to ensure our rivers can be as clean and healthy as possible we rely on the most robust tools, regulations, and policies that help guide science-based decision making. Biological indicators of river health are one of those important tools. The Cymbella diatoms whose presence in these models provides a scientifically robust measure of what constitutes high-quality water are ones we need to listen and pay attention to. So the next time you are paddling down or wandering along that clear and cold stream give a nod to that other “wanderer” helping guide us on our journey to clean and healthy water for all!


A version of this blog was first published in the Spring 2024 edition of Estuary, a quarterly magazine for people who care about the Connecticut River; its history, health, and ecology—present and future. Find out how you can subscribe at estuarymagainze. com

One Friday in May, I got up from my desk and went over to a municipal golf course in south Atlanta for a very special event. The event had nothing to do with golf, and everything to do with rivers.

This was the launch of Atlanta to the Atlantic—a collaborative and experiential act of art-making led by artists Rachel Parish and Sarah Cameron Sunde through Atlanta’s Flux Projects.

It was a slightly giddy bunch of us river paddlers, artists, watershed advocates, and community activists who traipsed down from the Brown’s Mill Golf Course clubhouse to the easiest river access on the property, accompanying Rachel and Sarah to what they’d deemed the best place to start their source-to-sea journey, where the river is barely a creek but is at least something you can float.

Starting a long kayak tour on a tiny urban river? Yes, if that’s where its source is. And why? Because, in their words, “Atlanta to the Atlantic aims to foster awareness of the South River and its environmental health by bringing people into closer relationship with its waters that run through their neighborhoods.”

And how? From the project website:

“A durational work, their journey will take them from the South River (aka Weelaunee) to the Ocmulgee, then along the Altamaha, and finally to the Atlantic Ocean.”

To highlight the interconnectedness of Georgia’s urban and rural communities, Parish and Sunde will invite engagement from local communities along the way. Documenting this journey through video, audio, drawing, and writing, their observations will construct a dynamic portrait of the human and natural communities that are united by this vital waterway.

The Installations: In the fall of 2025, their project will culminate with a series of temporary installations along the tributaries in three Atlanta neighborhoods. These installations (and supporting programs) will highlight the presence of the waterway, offer opportunities for recreation and reflection, and incorporate elements of the collective portrait that emerged along the journey.

With the support of Flux Projects, South River Watershed Alliance, and a whole crew of helpers and advisors, the journey is now underway. Standing on the riverbank and seeing them off, I chuckled at how much walking they’d have to do on Day 1 of the trip—on such a small river—and how very many downed trees, snags, and strainers they’d have to navigate. “Been there!” I told them, remembering long days canoeing (and walking) other small rivers elsewhere around here. “There’s gonna be more of that today!”

Scrambling up the steep riverbank after helping the kayaks down, I put my hand on an old, deflated air mattress that had been wrapped around a tree by the river’s current in flood. By some unwritten personal rule, I knew that I now had to take this exceptionally large piece of plastic trash out of the river. So I unwrapped it from the tree and dragged it up the bank to sit in a heap while we all said the rest of the goodbyes.

South River Falls | Alan Cressler
South River Falls | Alan Cressler

Finally, with the paddlers floating out of sight and clouds thickening overhead, the group of well-wishers slowly dispersed. Under a light rain I folded up the sandy, muddy air mattress the best I could and lugged it back across the fairways, up the hill to the parking lot. I drove the 15 minutes back home; changed out of my damp socks and dirty shirt; warmed up my lunch. Then I did something that surprised me: I opened my phone to see if the livestream from the camera mounted on the bow of Sarah’s kayak was working yet.

It surprised me because I’m a little bit technophobic, especially when it comes to the changing ways we experience the world around us (and, in particular, the natural environment) through ever-new technologies. And yet it delighted me as I sat down to my lunch, comfortable at the kitchen table but partly wishing I were there too, slogging through the shallows and hauling over logs. I saw things from the boat’s perspective. I could hear the birds singing, the gurgling repeated splash of paddles dipping the water, the chatter of the group as they noted game trails down to the river from the thick green forest growth all around and above them—still inside the city limits and well inside Atlanta’s perimeter highway.

There is a kindredness among the many of us who’ve done long river tours, that’s for sure. And I’m proud of the work I do in community meetings and the sterile, fluorescent-lighted halls of government to protect and restore our rivers, to bring communities back into touch with them. But the artists’ eye and ear that Sarah Cameron Sunde and Rachel Parish bring to their journey, to this river system and its people, makes for another way of knowing rivers altogether. Beyond going downriver to the Atlantic, I can’t wait to see where this project goes in the months ahead.

Restoring Ackerson Meadow is a story of big firsts. This was the first time I’d ever seen a wildlife conservation dog in action. Trained to sniff out the threatened northwestern pond turtle, Ari the Poodle and her canine colleagues have helped to find about 300 northwestern pond turtles at Ackerson. Who knew conservation could be both adorable and impactful? This project was also the first time this much earth had been moved in Yosemite National Park (150,000 cubic yards of soil or 15,000 dump truck loads), making it the largest full-fill meadow restoration in the history of the Sierra Nevada. And as of June 2024, the first phase of restoration is complete!  

This project was driven by collaboration between American Rivers and Yosemite National Park, Stanislaus National Forest, Yosemite Conservancy, and others, a multifaceted partnership that led to the acquisition of the meadow from private landowners in 2016 and the restoration we are seeing play out today. Ackerson Meadow is a roughly 3-mile-long, 230-acre meadow system. Restoring it is no small feat! To make it more doable during the short snow-free months of the Sierra Nevada, the project is being implemented in two phases. The first phase, now complete, focused on restoring the downstream portion, roughly 80 acres, of Ackerson Meadow. This monumental effort involved excavating mineral soils from the areas burned in the 2013 Rim Fire and using them to fill an erosion gully nearly 15 feet deep.

 

Finishing the first phase of restoration on this picturesque site was something to celebrate, and on June 12, a large group gathered on the western edge of Ackerson Meadow, which straddles the western boundary of Yosemite National Park. Shaded under canopies in 90+ degree summer heat, speakers from Yosemite National Park, Stanislaus National Forest, Yosemite Conservancy, National Park Foundation, CA Dept of Fish and Wildlife, CA Wildlife Conservation Board, American Rivers, CA Natural Resources Agency, and Trust for Public Land stepped up to the podium to deliver celebratory remarks, with a newly watered meadow and the green Sierra Nevada in the backdrop.

Dr. Ann Willis speaking at the Ackerson Meadow Phase I groundbreaking ceremony | Phoenix Geritz
Dr. Ann Willis speaking at the Ackerson Meadow Phase I groundbreaking ceremony | Phoenix Geritz

The impacts of restoration are already on display. After the ceremony’s speakers did a ceremonial planting of native wetland plants (also the first time I’ve seen a golden dibble), I led a tour around the site as interested folks peppered me with questions and observations. We could see water spreading across the meadow surface and sinking into the ground in real-time, glistening between the strands of tall grass. Results don’t always manifest this quickly. Natural processes can take years, decades, or even centuries to recalibrate. But the work isn’t over. We are moving on to Phase II, where with the support of the CA Department of Fish and Wildlife and their Nature Based Solutions grant program, we’ll restore the upstream 160 acres of Ackerson Meadow. This will complete the final step in a decade-long effort to protect and restore the site.  

The story behind this gathering and this moment could be told from many perspectives in many eras. Ackerson Meadow was a gathering point for Native peoples from the east and west side of the Sierra Nevada mountain range for generations. After the Park was established in 1890, Californians and the world gained an indispensable national treasure, a promise for generations to come. But Ackerson sat outside the Park’s boundaries and was a privately owned cattle ranch for over a century before being acquired by a coalition of conservation groups, and transferred to Yosemite National Park. Now here we are, standing in the midst of transformation across 230 acres of wet critical habitat with a golden dibblein one hand and a happy turtle in the other. The Park’s Instagram page calls Yosemite “a shrine to human foresight,” and restoration like that at Ackerson Meadow feels very much the same.  


Note: Phase 1 of the project This project was funded in part by the donors of American Rivers, Bonneville Environmental Foundation, California Department of Fish and Wildlife, California Wildlife Conservation Board, Google (in association with their Water Stewardship pledge and strategy), National Park Foundation (provided by The Coca-Cola Company, The Coca-Cola Foundation, and Stericycle), National Park Service (provided by Bipartisan Infrastructure Law-Ecosystem Restoration, Concessions Franchise Fee, and NPS Operations), US Forest Service, and the Yosemite Conservancy.  

“There is nothing new under the sun, but there are new suns.” -Octavia Butler

It is not breaking news that communities of color (regardless of wealth) are more vulnerable to the impacts of climate change, and specifically more vulnerable to flooding (Natural Hazards Center, 2020). It is also not news that the legacy of formal policies that forced communities of color, specifically Black Americans, to live in flood-prone areas persists today (Redfin, 2021). These policies manifest daily for black and brown communities through the lived experience of disproportionate environmental burdens, and increased risk of hazards associated with flooding. Yet, too often well-meaning floodplain managers, conservationists, and policymakers advance flood risk reduction projects that displace people of color and drain intergenerational wealth. 

So how do we transform the landscape of floodplain decision-making, planning, and policy? How do we create bridges between policymakers and the community members who are the most impacted? How do we generate meaningful dialogue, partnerships rooted in place, and actionable change where it is needed most?

Centering communities of color means learning from communities of color. There is a long and well documented history of failed regulatory support for black and brown communities. Despite this, communities of color have a rich history of success in transforming their own conditions (NRDC, 2022). Still, community organizers need support.  

In April 2023, American Rivers partnered with the Illinois NAACP, Watertown Community Empowerment Organization, and United Congregations of Metro East to form the Illinois Floodplain Community Justice Network (IFCJN). This network formed as a direct result of the Illinois Floodplains Work: A Feasibility Study which made clear that flood-prone communities of color in Illinois have not been served well by their local governments, and illuminated the need for community organizers to augment the efforts of local floodplain managers, Illinois Emergency Management Agency (IEMA) and Department of Natural Resources (DNR), and Federal Emergency Management Agency (FEMA). The IFCJN organizes people by connecting flood-prone communities to share knowledge, information, and resources. Our nascent network offers training and guidance on flood issues,  engages residents in the process of updating their Flood Insurance Rate Maps, and provides guidance on how to influence local Natural Hazard Mitigation Plans. Lastly, the IFCJN influences planning and policy by advocating for policies that center the needs of communities of color in planning and decision-making as it relates to flood issues.  

Centering communities of color in decision-making for floodplain management enables more equitable and effective projects to reduce flooding in the face of climate change. We are hopeful that this network will serve as a model for future partnerships nationally.

June is National Rivers Month! Summer is upon us and long days on the river have begun. Whether you walk a local riverwalk, fish, kayak, canoe, swim, or even just float, this is the time of year to get out on your favorite river! 

There’s a lot to celebrate about rivers this month. Here are some highlights: 

It’s the 50th Anniversary of the Chattooga River becoming a Wild and Scenic River!  

When Congress passed the Wild and Scenic Rivers Act of 1968 the Chattooga was specifically identified as one of 27 rivers across the country to be studied for possible future inclusion in the new National Wild and Scenic River System. Following the study, it was concluded that the Chattooga was indeed eligible and on May 10, 1974, the Chattooga River became the first river in the Southeast designated as a Wild and Scenic River. Read More…

New drinking water standards were recently introduced by the EPA to protect against “Forever Chemicals”

EPA Administrator Michael Regan recently spoke about the impacts of years-long contamination of our nation’s waterways by manufacturers of forever chemicals. Administrator Regan also highlighted the efforts of many citizens, scientists, EPA staff, and officials at all levels of government to hold these polluters accountable as well as enact regulations to protect against these harmful chemicals. Learn More…

Our team is making great strides in the California Headwaters 

California relies on its headwaters in the Sierra Nevada to provide a steady clean water supply to downstream users, essential habitat for native species, and recreation for nature lovers. Restoring Ackerson Meadow in the California Headwaters will also provide multiple benefits for climate resiliency, water quality and supply, flood attenuation, carbon sequestration, and biodiversity. Learn More…

While there is a lot to celebrate, there is also still a lot to be done to ensure the health of our rivers and to protect clean water. A Supreme Court decision last summer gutted protection for streams and wetlands, dramatically narrowing the scope of the Clean Water Act and undoing protections that have safeguarded the nation’s waters for over 50 years. This decision erased critical protections for tens of millions of acres of wetlands which threatens the clean drinking water sources for millions of Americans.   

To better understand how this Supreme Court decision will impact your clean water, we asked a friend to help tell the story. Meet Splashy! An eager small stream who wants you to know how this ruling cut protections for streams like him and how it has put your clean water at risk. 

Splashy and the gang are here to teach you all about how small streams and wetlands are connected to your clean water. You will likely learn something new, and you might just fall in love with a little blue drop of water. 

As for me, I’ll be spending most of my summer out on the James River in my hometown of Richmond, Virginia, creating memories with friends and loved ones during group paddles and river hangs. I also love to take time and ground myself by sitting and listening to the water as it makes its way downstream. It helps remind me that rivers have life within and around them — life that depends on them. Rivers count on you and me to be their voices and advocate for their health and well-being. So, I encourage you to spend time near your local waterways this summer and learn a little about them. Does your drinking water come from a river? What is your state doing to protect streams and wetlands? How can you get involved in your local river community? 

Let me and Splashy know what you’ve learned in the comments down below! 

I recently attended the announcement held along the banks of the Cape Fear River—of the long-awaited drinking water standards for 6 types of PFAS, also known as “forever chemicals.” EPA Administrator Michael Regan spoke about the impacts of years-long contamination of our nation’s waterways by manufacturers of forever chemicals. Administrator Regan also highlighted the efforts of many citizens, scientists, EPA staff, and officials at all levels of government to hold these polluters accountable as well as enact regulations to protect against these harmful chemicals. 

Donna Myers with North Carolina Governor, Roy cooper
Donna Myers with EPA Administrator, Michael Regan

Donna Myers, Associate Director of Southeast Conservation, with North Carolina Governor Roy Cooper (Left) and EPA Administrator Michael Regan (Right)

This was an important day for affected citizens who’ve rallied their communities across North Carolina for years to address the serious health risks posed by the permitted dumping of PFAS, notably into the Cape Fear River by Chemours Fayetteville Works Plant. However, the concerns are not only downstream of this discharge.  To learn more about the proliferation of these substances, The State of North Carolina Department of Environmental Quality began sampling for PFOS and PFOA in drinking water sources across the state. Citizens can find the results of those studies here or by contacting their local water utility.  

American Rivers supports this monumental movement toward clean drinking water standards of PFAS contaminants. While this is a huge step forward, we and our partners remain concerned over contaminants still in the Cape Fear River and the State of North Carolina’s ability to regulate the polluters responsible for these releases. American Rivers supports our partners including Haw River Assembly and Cape Fear River Watch who continue to call for the polluters to be held accountable by cleaning up years-long permitted discharges of PFAS and end the discharge of these harmful chemicals into the river.