These are the stories that defy conventional logic. The proverbial vanished without a trace incidences, which happen a lot more (and a lot closer to your backyard) than almost anyone thinks. These are the missing whose situations are the hardest on loved ones left behind. The cases that are an embarrassment for park superintendents, rangers, and law enforcement charged with Search & Rescue.

The real stories behind the scenery of America’s national parks. For 12 years, Andrea Lankford lived in the biggest, most impressive national parks in the world, working a job she loved. She chaperoned baby sea turtles on their journey to sea. She pursued bad guys on her galloping patrol horse. She jumped into rescue helicopters bound for the heart of the Grand Canyon. She won arguments with bears. She slept with a few too many rattlesnakes. Hell yeah, it was the best job in the world! Fortunately, Andrea survived it.

While growing up in Peace River, Alberta, Trina Moyles heard many stories of Lookout Observers--strange, eccentric types who spent five-month summers alone, climbing 100-foot high towers and watching for signs of fire in the surrounding boreal forest. How could you isolate yourself for that long? she wondered. "I could never do it," she told herself.

A few years after quitting his job to follow an ill-advised dream of becoming a guide on the Colorado River, Kevin Fedarko was approached by his friend, the National Geographic photographer Pete McBride, with a vision as bold as it was harebrained. Together, they would embark on an end-to-end traverse of the Grand Canyon, a journey that, McBride promised, would be “a walk in the park.” Against his better judgment, Fedarko agreed to the scheme. The ensuing ordeal, which lasted more than a year, revealed a place that was richer, and far more complex, than anything the two men had imagined.

Looking out his porch window one spring morning, Adam Shoalts spotted a majestic peregrine falcon flying across the neighbouring fields near Lake Erie. Each spring, falcons migrate from southernmost Canada to remote arctic mountains. Grabbing his backpack and canoe, Shoalts resolved to follow the falcon’s route north on an astonishing 3,400-kilometre journey to the Arctic.

Sourced from Pierre-Esprit Radisson’s journals, which are the best firsthand accounts of 17th-century Canada, Bush Runner tells the extraordinary true story of this protean 17th-century figure, a man more trading partner than colonizer, a peddler of goods and not worldview - and with it offers a fresh perspective on the world in which he lived.

Traverspine is not a place you will find on most maps. A century ago, it stood near the foothills of the remote Mealy Mountains in central Labrador. Today it is an abandoned ghost town, almost all trace of it swallowed up by dark spruce woods that cloak millions of acres. In the early 1900s, this isolated little settlement was the scene of an extraordinary haunting by large creatures none could identify. Strange tracks were found in the woods. Unearthly cries were heard in the night. Sled dogs went missing.

At 22, Cheryl Strayed thought she had lost everything. In the wake of her mother's death, her family scattered and her own marriage was soon destroyed. Four years later, with nothing more to lose, she made the most impulsive decision of her life: to hike the Pacific Crest Trail from the Mojave Desert through California and Oregon to Washington State - and to do it alone. She had no experience as a long-distance hiker, and the trail was little more than “an idea, vague and outlandish and full of promise.” But it was a promise of piecing back together a life that had come undone.

Three friends, women in their fifties, set out to hike "the most beautiful long-distance trail in the world," the John Muir Trail. From the outset, their adventure is complicated by self-inflicted accidents and ferocious weather, then enriched when they "adopt" a young hiker abandoned by her partner along the trail.

Entropy is a law of nature, the one predicting that "things fall apart." Spend enough time outdoors and it will eventually happen to you. When it does, who will pick up the pieces? Who will glue them back together? Professional search and rescue volunteers leave work, home, and their cozy beds to rescue people on the worst day of their lives. They buy their own gear, pay their own gas, and ask nothing more than to make a contribution to the lives of strangers who they'll probably never meet again.

Fans of true crime shows like CSI, NCIS, Criminal Minds, and Law and Order know that when it comes to “getting the bad guy” behind bars, your best chance of success boils down to the strength of your evidence—and the forensic science used to obtain it. Beyond the silver screen, forensic science has been used for decades to help solve even the most tough-to-crack cases.

In the tradition of Into the Wild comes an instant classic of outdoor literature, a riveting work of uncommon depth. I’m planning on doing four days in the jungle.... It should be difficult to get lost forever: These were the haunting last words legendary adventurer Roman Dial received from his son, before the 27-year old disappeared into the jungles of Costa Rica. This is Dial's intensely gripping and deeply moving account of his two-year quest to unravel the mystery of his son's fate.

In November 1987, a young couple on an overnight trip to Seattle vanished without a trace. A week later, the bodies of Tanya Van Cuylenborg and her boyfriend Jay Cook were found in rural Washington. It was a brutal crime, and it was the perfect crime: With few clues and no witnesses, an international manhunt turned up empty, and the sensational case that shocked the Pacific Northwest gradually slipped from the headlines.

Destined to become a classic of adventure literature, The Last Season examines the extraordinary life of legendary backcountry ranger Randy Morgenson and his mysterious disappearance in California's unforgiving Sierra Nevada - mountains as perilous as they are beautiful. Eric Blehm's masterful work is a gripping detective story interwoven with the riveting biography of a complicated, original, and wholly fascinating man.

In May 1996, two skilled backcountry leaders, Lollie Winans and Julie Williams, entered Virginia’s Shenandoah National Park for a week-long backcountry camping trip. The free-spirited and remarkable young couple had met and fallen in love the previous summer while working at a world-renowned outdoor program for women. During their final days in the park, they descended the narrow remnants of a trail and pitched their tent in a hidden spot. After the pair didn’t return home as planned, park rangers found a scene of horror at their campsite.