Hell Creek, Montana, is one of the most windswept, hardscrabble locales in the American West-a quiet town of ranchers, farmers, and others who seek the beauty of the open spaces. It is also the unlikely setting of some of the most fascinating events in the history of the United States and North America. From the first-ever discovery of a Tyrannosaurus rex to Lewis and Clark's landmark expedition; from the Freeman compound standoff to Sitting Bull...