The chilling tome that launched an entire genre of books about the often gruesome but always tragic ways people have died in our national parks, this updated ed

Yellowstone National Park contains over half the world's active geysers, with more than 700 within its 3,472 square miles. The most famous geyser is Old Faithfu

Yellowstone National Park contains over half the worlds active geysers, with more than 700 within its 3,472 square miles. The most famous geyser is Old Faithful