Trent Knoss

Possibly the most useful fashion accessory you'll ever wear.

In the early days of Yosemite, a woman could be anything—including herself

The black bear charged a group of visitors that had stopped to snap photos.

The man was flying a drone over a caldera on Kilauea.

17 are dead after a deadly avalanche struck the mountain's base camp early Saturday.

From alpine obsession to the search for Abbey's grave, here are six new books for every backpacker's reading list.

The central Colorado destination is popular with hikers and rafters.

The National Park Service's new map shows you where to find peace and quiet.

6 Valentine's Day gifts for your outdoorsy sweetheart, plus 4 tips for a romantic backcountry getaway.

Kara Richardson Whitely talks about conquering Kili as a plus-sized hiker.

From powerful lanterns to wilderness texting, these innovations caught our eye at the Outdoor Retailer show.

Travel the world. Take beautiful photos. Share incredible stories. Photographer Forest Woodward talks about living life in pursuit of art.

REI announces $1.5 million campaign to advance women's leadership in the outdoor industry.

From an Antarctic marathon to the roof of Africa, here are 8 challenging hikes we can all aspire to.

The slide occurred near the Big Four Ice Caves.

An udder catastrophe.

Someone's getting coal in his stocking this year.

It's not every day that the Grand Canyon gets filled up with clouds.

The ice on this Slovakian lake is as clear as glass.

The renowned Swiss alpinist on risk, training regimens, and the recent tragedies in the Himalayas.

A new e-book explores a vicious polar bear attack and the uncertain fate of the species in a changing Arctic.

The 25-year-old was reportedly attempting to climb Longs Peak.

The group spent an unexpected night out after failing to return from a day hike.

The victim is in critical condition.

President Obama will designate nearly half of the range on Friday.

A viral news story about Elkmont gets debunked.

If you find them first, that is.

The second and final lunar eclipse of the year takes place on October 8.

The mother fought back valiantly.

A shortage of sea ice is forcing them ashore.

They climbed, biked, and hiked to say 'I do.'

Flash flooding trapped the 34-year-old man in a canyon.

Over 30 hikers are feared dead after the Japanese volcano erupted Saturday.

A noted climber, Washburn also made significant contributions to cartography.

A snapshot could cost up to $1,500 under new permit requirements.

The tug-of-war over the iconic species continues.

It's New Jersey's first fatal bear attack in over 150 years.

The big cat charged the group on a trail near Steamboat Springs, CO.

Guides used headlamps to illuminate the historic route.

What does the knot say?

The controlled burn will cover 10,000 acres.

The winged creature took a bite out of the guitarist.

The Meadow Fire has burned more than 2,500 acres.

Rise of the Planet of the Grizzlies.

The popular route sees nearly 800 hikers per day on peak weekends.

6 new books that backpackers will love this season.

A new apparel company puts its focus on trail work.

The "bear-crow" comes armed with 25,000 volts of electricity.

eVent membrane technology goes stretchy—and that's great news for the evolution of softshells.

Channing Tatum, Zac Efron, and Ben Stiller will accompany Bear into the wild.

Yep, you read that right.

The 5-year-old golden retriever was reunited with her family earlier this month.

A curious black bear tags along on a trail run.

The proceeds will benefit the Wild Spirit Wolf Sanctuary in Santa Fe, NM.

The 22-year-old was carried several hundred feet down Middle Cascade before being rescued.

Kinda like The Bigfoot Witch Project, amirite?

Because why not?

The 1993 Sylvester Stallone thriller is getting a modern overhaul.

The 19-year-old is trapped at 13,000 feet on the peak's treacherous eastern face.

The blaze has already burned 900 acres.

The 19-year-old is trapped at 13,000 feet on the peak's treacherous eastern face.

The grizzly charged a Parks Canada employee while he was biking alone.

Another reminder that bears are faster than you think.

A beautiful, terrifying storm captured on camera.

Entomologists have discovered the state's first confirmed population.

Multiple vehicles have been torn apart.

A new land acquisition would allow the trail to ditch the Mojave and add more mountains.

The 22-year-old was reported missing late Monday night.

An interview with thru-hiking phenom Kristin Gates

UAVs are no longer welcome in the park.

The incentives are designed to reduce noise pollution within the park.

A new proposal would limit the number of South Rim wilderness permits to just one per week.

In the unfinished, never-released film Grizzly 2: The Predator.

It's the single-deadliest accident in the mountain's history.

The '127 Hours' hiker was jailed on a domestic assault charge that was later dropped.

Red nose? Nah. Instead, the Arctic reindeer's eyes change from gold to blue in wintertime.

A jaw-dropping -135 degrees Fahrenheit.

Tyler Armstrong becomes the youngest person ever to summit Argentina's Mt. Aconcagua.

The walkout comes in response to last week's deadly avalanche.

The 19-year-old man collapsed Thursday just miles from the U.S.-Mexico border.