Lewis and Clark on the Trail of Discovery: The Journey That Shaped AmericaDescribes the expedition led by Meriwether Lewis and William Clark to explore the unknown western regions of America at the beginning of the nineteenth century. Includes facsimiles of journal entries, maps, and letters inserted in folders and under flaps. Chronicles the westward journey of Merriweather Lewis and William Clark from the Mississippi to the Pacific Ocean with replicas of documents, letters, journal entries, and maps from the expedition.,