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World's top outdoor athletes to sprint up Empire State Building

New study suggests spending time outdoors improves kids' vision

Swiss Alps town bans nude hikers

Uncovering another extension to a long cross-country route through Capitol Reef

Accoring to a Backpacker.com reader poll, the answer is a resounding yes.

Scientists predict Mt. Redoubt could erupt within the next few days or weeks

It was tough to pick just one winning photo this year with all the top-notch submissions. So, here are the top five.

Does the Boss hike? Or just his anti-hero Outlaw Pete?

Possibility of extinction looms over Emperor Penguin

"Marley & Me" star takes first dates on hikes

Collect hikes with your Verizon mobile phone and wirelessly send them to Backpacker.com.

I hike solo in bear country. Will using bear bells keep me safer than clapping, singing, and talking loudly?

Check out Katie Herrel's author page.

Rocky Mountain National Park employs sharpshooters to help thin overgrown elk herds

Our newest widget lets you automatically share adventures with your Facebook friends.

New NOAA study concludes global warming is 'largely irreversible'

Afghan kids get outside--and get new opportunities--through Skateistan

BACKPACKER's convention warriors weigh in on the coolest, craziest, and (believe it or not) skimpiest new gear from this year's show

Proposed bill could block uranium mining near Grand Canyon watersheds

NASA predicts 2009 could bring record high temperatures

A new process uses electricity not water to dye wool, reducing water use and pollution

Project Backyard researcher uncovers ancient rock art endorsement

Check out Katie Herrel's author page.

Check out Katie Herrel's author page.

New study suggests climate change has finally come to Antarctica

New waterproof/breathable membrane comes to the U.S.

Check out Katie Herrel's author page.

Check out Katie Herrel's author page.

Hood strikes again, as a female climber gets killed by chunk of falling ice. Why is this mountain so deadly?

Obama blocks Bush's wolf and air quality midnight regulations, but West remains open to oil-shale drilling

Clean air does more than clear your mind--it could add years to your life

Canada's military develops technique to keep naked hands warm in freezing temps

Stay-cations can't be adventurous? We post otherwise, and invite you to do likewise.

I once punched a black bear in the nose that was sniffing my hammock while I was in it. The bruin retreated and huffed at me for a while, and I huffed back. Since then I've always wondered, does huffing at a bear encourage it to act aggressively?

Footage of buried skier makes this season's avalanche danger tangible

Boulder cyclist gets trailside beef from an angry cow

Red Cross treats Inauguration-Day revelers for hypothermia

While more Americans get outside overall, stubborn youth just can't pull themselves away from those damn videogames

Forget bears and wolves--more federal money was spent protecting the endangered Mojave tortoise

Find hikes in National Parks and regional parks with our comprehensive guides.

Use our comprehensive state-specific pages to find hikes in your home state our a state you're planning on visiting.

Use our comprehensive city-specific pages to find hikes near your hometown or in a city you're planning to visit.

German bicycle-in-a-pack offers opportunity for faster descents, more broken bones

German woman missing for 12 years found ultralight camping in Swiss woods

Chilly temps in South Florida send frozen reptiles falling from trees

Wilderness gains 2 million acres, and Alaska gets a road through it

No matter where you live, your winter can't match this

Bush puts proposed National Park up for auction; Utah student makes a bid

Man vs. Wild star names son after namesake's favorite woodland treat

Follow editor Shannon Davis and his wife Emily as they trek the second half of the legendary Annapurna Circuit for their honeymoon.

Follow editor Shannon Davis and his wife Emily as they trek the first half of the legendary Annapurna Circuit for their honeymoon.

D.C.-area REI seeks to outfit adventurers bound for Obama's inauguration

U.S. Fish and Wildlife Service de-lists most wolf populations in the Lower 48

It's easy to misunderestimate your back yard. Let friend, tester and long-time contributor Larry Amkraut explain.

Shipments of backpacker's favorite food contaminated with salmonella

In his last week in office, Bush drafts executive policy regarding polar ice retreat

I want to wear deodorant, but I don't want to attract attention from bears. Is baking soda a good solution?

Financial fugitive arrested at Alabama campsite after attempted parachute escape

Contributor and friend Mark Jenkins has a close call with an avalanche. His partner is killed.

Jump aboard the Eda Frandsen with Backpacker.com editor Anthony Cerretani for a tour of the Scottish isles.

Backpacker.com editor Anthony Cerretani leaves the trail behind to sail the western Scottish isles in this video and photo feature.

Follow the Super Inca trail on a hike to Machu Picchu. You'll see secluded waterfalls, towering peaks, and the lost city itself. (Anthony Cerretani)

Discover the best hike in every state, as voted by BACKPACKER readers. Plus: your essential gear, most desirable tentmate, worst-ever adventure movie, and our picks for the best reader-submitted photos.

Associate editor Shannon Davis tells us more about the highs and lows of his honeymoon trek (featured in March 2009's "The Perfect Circle") on the sky-scraping Annapurna Circuit in Nepal.

Two years after hurricane-force winds and rain ravaged hundreds of miles of trail in Mt. Rainier National Park, the true damage is finally becoming clear. And what it's telling scientists is alarming: Bigger, more frequent–and more destructive–storms may be coming.

New research indicates human hunting and fishing speeds up evolution, leading to smaller organisms

Wolf numbers decrease in national park for 2008

Fresh, free-range, organic, and supposedly delicious—raccoons could be the next big thing for eco-conscious human carnivores

Army Corps of Engineers hopes to keep non-native Asian carp from invading Great Lakes region with $9 million electric barrier

Rob Gauntlett, who summited Everest at 19, dies at 21 in ice-climbing accident in the Alps

Senate designates over 2 million acres in nine states as new wilderness

Another dead Denali wolf. A battle for the soul of wild Alaska. Our reporter visits America's most iconic wilderness for the inside story of a park under siege.

Happy coincidence for wildlife-loving paddlers: Canoes and woodland caribou converge like nowhere else on Earth in Ontario's Slate Islands. PLUS: See video of caribou on the move.

Plan and cook for a group with these time-tested tips.

This easy reader trip will keep you feeling fresh and clean on the trail

Solve winter routefinding challenges with these expert tips.