English Summary/英文概要： From the start of the Lewis and Clark expedition in 1803 to the San Francisco Earthquake in 1906, a great historical drama unfolded on the American frontier. The era of the Wild West was a century-long period characterized by ceaseless exploration, wagon trains straining westward, cattle drives, Indian wars, gunfights, wandering trappers and mountain men, cowboys, rustlers, stagecoaches, and gold. What a century! Among the many fascinating stories recounted in this book are: • Meriwether Lewis’s first-ever Indian fight • The desperate search during the Lewis and Clark expedition for a passageway through the Rocky Mountains before winter struck • Bespectacled Easterner Teddy Roosevelt’s rude treatment in the Dakota Badlands in the 1880s • The high drama of the San Francisco Earthquake • Anecdotes that follow the construction of the transcontinental railroad • The western explorations of topographical engineer Stephen Lon!