Two people went for a hike on the Appalachian Trail. Only one made it out.

When a day hike in Rocky Mountain National Park ended in a grisly death, Investigative Services Branch veteran Beth Shott hit the trail, where she began unraveling a harrowing case.

Pinned down in deep snow and running out of food, veteran thru-hiker Stephen “Otter” Olshansky scraped his way to a campground latrine, holed up inside, and prayed for help to arrive.

The ultra-athlete and the doubters.

The author survives a bite by a venomous snake in a remote area of Yosemite National Park.

My leg, from toe to hip, turned black and yellow and eventually swelled to 24 inches, more than twice its normal circumference.

He was the best alpinist of his generation, a quiet, unassuming Canadian known for bold ascents of some of the world’s most iconic peaks. Four months ago, at the age of 25, he traveled to Alaska to join climber Ryan Johnson for a first ascent outside Juneau. They never came back.

Riding along with the cycling lawyer who’s trying to change that.

“He stood on edges. He skied edges. He climbed edges.”

Carol, who was out for a walk one afternoon, saw me marching around and shouted across the street: “YOU SURE WANT TO FIND THAT CAT!”

“YES,” I yelled back. “I SURE DO.”

How getting back into serious cycling helped the author heal as his marriage unraveled.

Learning to live in Earth’s coldest conditions.

Finland shares an 833-mile border with an aggressive and unpredictable neighbor––Russia. North of the Arctic Circle, the author trained with the elite soldiers who will be on the front lines if this cold feud ever gets hot.

A step-by-step account.

Going on a fishing trip with the secretary of the interior.

What it takes to be the best alpine skier in the world.

The life and death of OR4, the patriarch of Oregon’s reintroduced wolves.

He had the gear, the charm, the trail stories. He found his marks in outdoorsy women.

How a Colorado ranch taught the author to sit still.

The author didn’t plan to write about that 2014 trip through the Grand Canyon. Then he died.

The writer travels with his father to Iceland and Greenland.

The story of the “Barefoot Bandit,” a teenage fugitive on the run.

Taking a stand for public land turns out to be very good for sales.

Four American rock climbers are kidnapped by guerillas in Kyrgyzstan.

In February 2010, a killer whale named Tilikum dragged his SeaWorld trainer into the pool and drowned her. It was the third time the orca had been involved in a death during his 27 years in captivity. This is his story.

Millions of dollars worth of nuts are disappearing in California.