Wine making and hiking come together perfectly in the Sonoma Valley, where California meets the Mediterranean.
Every year the salmon of the Pacific Northwest return to their birth place to spawn. See this natural phenomenon and a river of fish on an easy hike through tall pines.
Get sprayed by an oceanic geyser. Erupting every few minutes under perfect conditions, this is a natural wonder you can't miss.
Millions of years ago, these crazy rock formations were formed in Turkey due to volcanic activity.
Fiery volcanoes, 40-ton mammals, otherworldly caves–in this explorer's guide, we'll show you where to find the most mind-blowing backcountry features on the planet.
By Marcus Woolf
These gaping glacier cracks are dramatic–and deadly. Here's how they form, plus three safe places to see a crevasse up close.
Learn how carnivores and their quarry interact—and what happens when humans upset the natural balance.
America's largest rodent may be clumsy on land, but in water, it's a marvel of design.
How did the bear cross the road? See a few ways engineers are helping wildlife go over, under, and around traffic.
These vertical hurricanes are rare–but deadly.
The science behind the sky's natural fireworks display–and how to see it.
Like it or not, national parks are officially in the business of business. Will this focus destroy the soul of a national institution - or save it in these lean times?
Glaciers sculpt mountains, dredge valleys, and remain an unending source of fascination for hikers.
Don't worry about lava. Worry about rocks and mud and ash.
Hike into the epicenter of a cataclysmic explosion in New Mexico's Valles Caldera
Global warming creates conditions that invite larger and more frequent forest fires. Here's how.
Rising alpine temperatures and polluted snow are threatening snowpack–and the water it generates.
Quicksand isn't just in old Westerns, it's also a real backcountry hazard. Learn how to save your life when faced with the slippery stuff.
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 6.
Will anyone ever climb the dangerous northwest face of Alaska's Devil's Thumb? Maybe they shouldn't.
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 5.
Why are Sherpas so studly?
One camper sweats and another shivers. What's the deal?
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 4.
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 3.
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 2.
Camping in Death Valley might give you the hottest day of your life.
The most-studied glacier in the park lets you see global warming in action.
The ultimate guide to greenhouse adventure, featuring 8 surprising new trips, acres of virgin terrain, and a peek at the future of North American wilderness.
We follow a giant, endangered caribou herd from the Yukon to Alaska's Arctic National Wildlife Refuge, Part 1.
Can anyone really know what lurks in the heart of a grizzly? In the wilds of Russia's Kamchatka peninsula, Charlie Russell believes he is beginning to find out.
Protection one of Alaska and Canada's largest caribou herds is so close, yet so far away.
Will he keep up? Karsten Heuer embarks on an audacious 1,200-mile expedition-cum-caribou chase.
18 facts you didn't know about Alaska and Canada's Porcupine Caribou herd.
How do you plan an expedition to follow 123,000 migrating caribou across Canada and Alaska? Very carefully.
How do you plan a route following 123,000 migrating caribou across Canada and Alaska? Try to keep up.
Spring is for the birds. Here's where to find a flock near you.
Want a ceremony that reflects your passion for the outdoors? Here's everything you need to know to pull off a wilderness wedding.
Watching snow fall is a backcountry joy--unless it's barreling 80 mph down a mountain and you're in its path.
Do you ever have the urge to step off the edge and fly like a bird?
How America's tragedy affected one New Jersey hiker.
Camping with kids can plant a wild seed in them that will grow as they do-but only if you get them Out There.
When you're deep in the wilds, a bedraggled stranger wandering into camp triggers a moral dilemma: Offer him dinner or run for the hills?
Should secret wildernesses be revealed? Utah's Anasazi artifact hotbed Cedar Mesa begs the question.
When our firstborn son left us, the word "burial" was never uttered.
Years and even decades after a forest fire, the healed land tells amazing tales about the benefits of flame.
A 5,200-year-old artifact provides insight into early man's walking habits.
Body odor can get pretty bad on the trail. Here's how to make sure you never again hear the words, "What's That Smell?"
Startling research reveals the backcountry melts tension.
In a strange way, music and wilderness go hand in hand.
Telling time without a watch is just a few digits away.
Pine Mountain and Wilson Ridge command high-country vistas stretching across rock-strewn meadows.