Jul 08, 2004 — Each summer for a quarter-century, the Adirondack Mountain Club has sent professional trail crews into the backcountry. The crews - usually made up of college students - live in the woods for five days at a time. They build and repair some of the Adirondack's most popular hiking routes. After 25 years in the woods, the crews have become a fixture for the people who use the trails they're working on. They're a tradition. But they're a changing one. Last summer, one of the crews was led by Anna Christner, a 24-year-old psychology student from Pennsylvania. Being trail boss means pushing around giant boulders. And in Christner's case, it also means leading a half-dozen young men into the wilderness. Brian Mann has the story.