For the last 30 years, American Rivers, a nonprofit advocacy group out of Washington, D.C., has been calling attention the plight of the country’s rivers. Today, the group released its annual Most Endangered Rivers report, a catalogue of the ten rivers in America most threatened in 2017.

Almost 50 years ago, Richard Nixon commissioned a photography project called Documerica to illustrate miles and miles of environmental degradation, advocating for the need for the agency. The following are some of the most striking images from that project.

Admirality Island has more brown bears than the entire lower 48 combined

When photographer Ryann Ford moved to Texas in 2007, she began driving across the state, accepting photography assignments in every corner. Ford would take the quickest, main highways on her way there and look for the more scenic routes on the way back.

Photographer Lucas Foglia’s widely celebrated book, Frontcountry, took him across much of the American West from 2006 to 2013. He captured nearly 60,000 images over that time and narrowed the final selection down to just 60 shots, all of which explored mining and ranching communities and their interaction with the surrounding landscape. Despite his extensive coverage, Foglia thinks many of the stories he came across are still undercovered. He even included a map in the book as an invitation for other photographers and storytellers to use as a resource. Here, Foglia highlights a few storylines from his book that are far from over.

You can’t drive to these backcountry lodges. This is a feature in our book, not a drawback.

The Director of Programs at the Natural Resources Defense Council on the fights she faces in 2015, and how to get involved.

Stuck in an airport during the wee hours? Author Bruce Northam, who’s been traveling the globe for the last three decades, explains what to do when a terminal becomes your one-night stand.

A nonprofit aims to publicize never-before-seen footage of marine life in its natural, undisturbed habitat. The goal? Develop the ultimate marine observation tool.

Can't get to the slopes yourself? There's a virtual reality goggle for that.

Think feeling crappy on a plane is inevitable? Think again. What you eat pre-flight could mean the difference between winning your away race and spending the trip in bed nursing NyQuil.

With airlines packing more people than ever into their planes, how can I make the most of my limited space?

Bob Windsor keeps Churchill, Manitoba, free of a different kind of perp

There are plenty of ski areas where you can show up without a map and dink around on mellow (read: boring) terrain all day. These aren’t those kind of resorts.

Looking for the funnest terrain in North America? Go here.

Where deep powder meets uncrowded runs

Five mountain towns where the skiing and riding are matched by equally entertaining off-the-slopes escapades.

When a craft-beer brewery starts making hand-made mountain bikes and putting them on a kickass North Carolina ranch, happiness is only a singletrack ride away.

A few weeks ago, when Vail Resorts bought Park City Mountain Resort, the sale triggered an onslaught of vitriol against Colorado's billion-dollar ski empire. But while it's easy to hate a company just because it's claiming territory faster than the whitebark pine beetle, Vail has actually been a very good thing for skiers.

What happens when you take away the road, the cheerful volunteers handing out energy gels, and most of your sanity? You get some of the gnarliest races out there.

Plus a few other excellent things I learned at FUZE SW, a food conference you do not want to miss.

Explorer Daniel Fox has paddled some of the world's wildest places in search of images that can reconnect us with nature—but not humanize it. His startling Wild Image Project brings wildlife up close and personal, asking viewers to reconsider their relationship with the environment. "Nature is raw, rough, cruel, pretty, beautiful, inspiring, but above all, a humble experience," Fox says. And that's a great thing.

I'd love to haul my kids up the railings to Half Dome, but don't want to risk accidents—or turning them off of hiking forever. How can we have fun while staying safe in the national park?

Anxiety, depression, obesity—kids are increasingly becoming unhappy and unhealthy. But there is a pill-free solution: outdoor play.

The gentrification of cheap beer continues.

National park concessions are moving toward more sustainable foods, and that means tastier, greener meals for you.

One man and his canine pal cover 13,000 miles in 32 states to discover just how strong our relationship is with man's best friend.

North Carolina State University wants to sell off Hofmann Forest for $150 million. Is that such a bad thing?

The 5 best ways to paddle, eat, and sail your way through "Vacationland" this summer

Surf icon Dave Kalama is still winning a year shy of his 50th birthday. But he has new competition: Kai Lenny, the 21-year-old rising star. What happens when the prodigy faces the man who taught him almost everything he knows about paddleboarding?

To win this year’s Tour Divide, Jefe Branham rode 170 miles a day, slept an average of four hours a night, and endured both unrelenting snow and 100-degree heat for 16 days straight. What you can learn from his time in the pain cave.

It’s such a culinary contradiction: the great gourmet food of New England is usually served on paper plates and eaten at picnic tables by grownups wearing plastic bibs. Yet there’s no denying that the tastiest lobster served in Maine invariably comes from laid back hole-in-the-wall food shacks that line the…

Play outside with kids your own age

Unlike the size of the fish you reel in, there's no need to exaggerate how nice these hotels are

With a little help from Make-A-Wish, Yosemite’s first honorary park ranger earns his keep and proves his strength

What do cyclists really want? Unbelievable trails.

These images, from some of Outside's favorite photographers, will make you want to pack your bags and get lost in adventure.

A wilderness retreat overlooking one of the largest lakes in the country

Reduced-oxygen training room Air Fit opens in Bay Area

A luxury sanctuary in the Pacific Northwest

If you’ve lost that loving feeling for running, there’s a surefire way to rekindle the flame: camp. “Putting yourself in an environment where you’re surrounded by other runners, and where you can focus only on your own running, is the perfect place to reenergize your passion,” says Ryan Warrenberg, assistant…

Conservations want the iconic animals to roam free once again. But many ranchers believe rewilding is a really bad idea.

Page 2