Color Overheads Included! Join the Lewis and Clark Expedition an exciting journey into the uncharted wilderness of western North America. Charged by President Jefferson in 1804 to gather information and explore the newly-acquired Louisiana Territory, Meriwether Lewis and William Clark led the Corps of Discovery up the Missouri River, across the Great Plains and the Rocky Mountains, and down the Columbia River to the Pacific Ocean. The activities in this book provide insight into the geography, natural resources, plant and animal life of the region, as well as the culture of the various Native American tribes the Corps of Discovery encountered along the way. The eight full-color transparencies at the back of the book can be used alone or with specific activities listed in the table of contents.