Tales behind the trails of America's national parks, thoroughly investigated and combining the popularity of ghost stories with the traditional aspects of a hiking guide. Readers will meet the chupacabra that roams the swamps inside Big Thicket National Preserve, Death Valley's moving rock and the disembodied legs that run around the Mammoth Cave Visitor Centre. A fright factor rating is listed for each hike, along with information on trailhead access, maps and difficulty levels.