Wilderness medicine is the practice of providing medical attention when definitive care is further that 1 hour's travel time to provide medical treatment. In very remote locations, it can take days or weeks for rescuers to reach victims. The practice of wilderness medicine comes into practice when it's necessary to seek medical attention for an injured or ill patient and, because of their location, rescue efforts are hindered or limited by access, terrain, available equipment, and extreme environments. To help provide guidance in these situations, the C.V. Mosby Company published the fifth edition of Wilderness Medicine last year with Dr. Paul S. Auerbach as editor.