It's fall in the Sierra Mountains, and Anna Pigeon is slinging hash in Yosemite National Park's historic Ahwahnee Hotel. Four young people, all seasonal park employees, have disappeared, and two weeks of work by crack search-and-rescue teams have failed to turn up a single clue; investigators are unsure as to whether the four went AWOL for reasons of their own - or died in the park. Needing an out-of-park ranger to work undercover, Anna is detailed...

Assuming a new post as district ranger at Rocky Mountain National Park in the wake of the disappearances of three young girls, Anna Pigeon is astonished when two of the girls emerge a month later with no memory of their experiences.

"Oklahoma 1909. Eleven-year-old Olive Augusta Radley knows that her stepfather doesn't have good intentions toward the two Choctaw girls boarded in their home as wards. When the older girl disappears, Ollie flees to the woods, taking six-year-old Nessa with her. Together they begin a perilous journey to the rugged Winding Stair Mountains, the notorious territory of outlaws, treasure hunters, and desperate men. Along the way, Ollie and Nessa form an...

Describes the varied tasks and activities of a park ranger at a national park.

Describes the work of scientists in America's national parks, as they study geysers, grizzly bears, salamanders, cacti, and fireflies.

The sole survivor of a plane crash, seventy-two-year-old Cloris Waldrip finds herself lost and alone in the unforgiving wilderness of Montana's rugged Bitterroot Range, exposed to the elements with no tools beyond her wits and ingenuity. Intertwined with her story is Debra Lewis, a park ranger struggling with addiction, a recent divorce, and a new mission: to find and rescue Cloris. As Cloris wanders mountain forests and valleys, subsisting on whatever...